diff --git a/app/build.gradle b/app/build.gradle
index b469ce5b..ce889540 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -108,6 +108,10 @@ dependencies {
     implementation "com.kakao.sdk:v2-share:2.15.0" // 메시지(카카오톡 공유)
     //EncryptedSharedPreference
     implementation "androidx.security:security-crypto-ktx:1.1.0-alpha06"
+    // dataStore
+    implementation "androidx.datastore:datastore-preferences:1.0.0"
+
+
 }
 // hilt dependency와 함께 추가
 kapt {
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/data/datasource/local/TokenDataSource.kt b/app/src/main/java/com/puzzling/puzzlingaos/data/datasource/local/TokenDataSource.kt
new file mode 100644
index 00000000..e3f3db63
--- /dev/null
+++ b/app/src/main/java/com/puzzling/puzzlingaos/data/datasource/local/TokenDataSource.kt
@@ -0,0 +1,41 @@
+package com.puzzling.puzzlingaos.data.datasource.local
+
+import android.os.Build
+import androidx.annotation.RequiresApi
+import androidx.datastore.core.Serializer
+import com.puzzling.puzzlingaos.data.entity.Token
+import com.puzzling.puzzlingaos.data.service.CryptoService
+import kotlinx.serialization.json.Json
+import org.apache.commons.lang3.SerializationException
+import java.io.InputStream
+import java.io.OutputStream
+import javax.inject.Inject
+
+@RequiresApi(Build.VERSION_CODES.M)
+class TokenDataSource @Inject constructor(private val cryptoService: CryptoService) : Serializer<Token> {
+    override val defaultValue: Token
+        get() = Token()
+
+    override suspend fun readFrom(input: InputStream): Token {
+        val decryptedBytes = cryptoService.decrypt(input)
+        return try {
+            Json.decodeFromString(
+                deserializer = Token.serializer(),
+                string = decryptedBytes.decodeToString(),
+            )
+        } catch (e: SerializationException) {
+            e.printStackTrace()
+            defaultValue
+        }
+    }
+
+    override suspend fun writeTo(t: Token, output: OutputStream) {
+        cryptoService.encrypt(
+            bytes = Json.encodeToString(
+                serializer = Token.serializer(),
+                value = t,
+            ).encodeToByteArray(),
+            outputStream = output,
+        )
+    }
+}
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/data/datasource/remote/ProjectDataSource.kt b/app/src/main/java/com/puzzling/puzzlingaos/data/datasource/remote/ProjectDataSource.kt
index 413a3a83..d20e2529 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/data/datasource/remote/ProjectDataSource.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/data/datasource/remote/ProjectDataSource.kt
@@ -1,6 +1,6 @@
 package com.puzzling.puzzlingaos.data.datasource.remote
 
-import com.puzzling.puzzlingaos.data.model.request.RequestInvitationCode
+import com.puzzling.puzzlingaos.data.model.request.RequestJoinProject
 import com.puzzling.puzzlingaos.data.model.request.RequestProjectRegisterDto
 import com.puzzling.puzzlingaos.data.model.response.ResponseInvitationCodeDto
 import com.puzzling.puzzlingaos.data.model.response.ResponseJoinProjectDto
@@ -15,7 +15,7 @@ interface ProjectDataSource {
 
     suspend fun joinProject(
         memberId: Int,
-        request: RequestInvitationCode,
+        request: RequestJoinProject,
     ): ResponseJoinProjectDto
 
     suspend fun isValidInvitationCode(
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/data/datasource/remote/impl/ProjectDataSourceImpl.kt b/app/src/main/java/com/puzzling/puzzlingaos/data/datasource/remote/impl/ProjectDataSourceImpl.kt
index 93556380..d577e675 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/data/datasource/remote/impl/ProjectDataSourceImpl.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/data/datasource/remote/impl/ProjectDataSourceImpl.kt
@@ -1,7 +1,7 @@
 package com.puzzling.puzzlingaos.data.datasource.remote.impl
 
 import com.puzzling.puzzlingaos.data.datasource.remote.ProjectDataSource
-import com.puzzling.puzzlingaos.data.model.request.RequestInvitationCode
+import com.puzzling.puzzlingaos.data.model.request.RequestJoinProject
 import com.puzzling.puzzlingaos.data.model.request.RequestProjectRegisterDto
 import com.puzzling.puzzlingaos.data.model.response.ResponseInvitationCodeDto
 import com.puzzling.puzzlingaos.data.model.response.ResponseJoinProjectDto
@@ -22,7 +22,7 @@ class ProjectDataSourceImpl @Inject constructor(
 
     override suspend fun joinProject(
         memberId: Int,
-        request: RequestInvitationCode,
+        request: RequestJoinProject,
     ): ResponseJoinProjectDto = apiService.joinProject(memberId, request)
 
     override suspend fun isValidInvitationCode(invitationCode: String): ResponseInvitationCodeDto =
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/data/entity/Token.kt b/app/src/main/java/com/puzzling/puzzlingaos/data/entity/Token.kt
new file mode 100644
index 00000000..8e9e57fc
--- /dev/null
+++ b/app/src/main/java/com/puzzling/puzzlingaos/data/entity/Token.kt
@@ -0,0 +1,8 @@
+package com.puzzling.puzzlingaos.data.entity
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Token(
+    val accessToken: String? = null,
+)
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/data/model/request/RequestInvitationCode.kt b/app/src/main/java/com/puzzling/puzzlingaos/data/model/request/RequestJoinProject.kt
similarity index 60%
rename from app/src/main/java/com/puzzling/puzzlingaos/data/model/request/RequestInvitationCode.kt
rename to app/src/main/java/com/puzzling/puzzlingaos/data/model/request/RequestJoinProject.kt
index 553d328f..f57b0aae 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/data/model/request/RequestInvitationCode.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/data/model/request/RequestJoinProject.kt
@@ -1,10 +1,11 @@
 package com.puzzling.puzzlingaos.data.model.request
 
+import com.puzzling.puzzlingaos.domain.entity.JoinProjectInfo
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 
 @Serializable
-data class RequestInvitationCode(
+data class RequestJoinProject(
     @SerialName("projectId")
     val projectId: Int,
     @SerialName("memberProjectNickname")
@@ -12,3 +13,9 @@ data class RequestInvitationCode(
     @SerialName("memberProjectRole")
     val memberProjectRole: String,
 )
+
+fun JoinProjectInfo.toRequestJoinProjectDto() = RequestJoinProject(
+    projectId,
+    memberProjectNickname,
+    memberProjectRole,
+)
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/data/model/response/ResponseDetailRetroDto.kt b/app/src/main/java/com/puzzling/puzzlingaos/data/model/response/ResponseDetailRetroDto.kt
index 34352f02..c2de2f4f 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/data/model/response/ResponseDetailRetroDto.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/data/model/response/ResponseDetailRetroDto.kt
@@ -1,5 +1,6 @@
 package com.puzzling.puzzlingaos.data.model.response
 
+import com.puzzling.puzzlingaos.domain.entity.DetailRetro
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 
@@ -12,7 +13,7 @@ data class ResponseDetailRetroDto(
     @SerialName("message")
     val message: String,
     @SerialName("data")
-    val data: Data?,
+    val data: Data,
 ) {
     @Serializable
     data class Data(
@@ -42,5 +43,18 @@ data class ResponseDetailRetroDto(
                 val content: String,
             )
         }
+
+        fun toDetailRetro() = reviews.map { reviews ->
+            DetailRetro(
+                reviewId = reviews.reviewId,
+                reviewDay = reviews.reviewDay,
+                reviewDate = reviews.reviewDate,
+                reviewTemplateId = reviews.reviewTemplateId,
+                content = reviews.contents?.map { content ->
+                    DetailRetro.Content(content.title, content.content)
+                },
+
+            )
+        }
     }
 }
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/data/model/response/ResponseInvitationCodeDto.kt b/app/src/main/java/com/puzzling/puzzlingaos/data/model/response/ResponseInvitationCodeDto.kt
index 78e4389f..cba18274 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/data/model/response/ResponseInvitationCodeDto.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/data/model/response/ResponseInvitationCodeDto.kt
@@ -1,5 +1,6 @@
 package com.puzzling.puzzlingaos.data.model.response
 
+import com.puzzling.puzzlingaos.domain.entity.InvitationCode
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 
@@ -12,7 +13,7 @@ data class ResponseInvitationCodeDto(
     @SerialName("message")
     val message: String,
     @SerialName("data")
-    val data: InvitationCodeData?,
+    val data: InvitationCodeData,
 ) {
     @Serializable
     data class InvitationCodeData(
@@ -20,5 +21,7 @@ data class ResponseInvitationCodeDto(
         val projectId: Int,
         @SerialName("projectName")
         val projectName: String,
-    )
+    ) {
+        fun toInvitationCode() = InvitationCode(projectId, projectName)
+    }
 }
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/data/model/response/ResponseMyRetroListDto.kt b/app/src/main/java/com/puzzling/puzzlingaos/data/model/response/ResponseMyRetroListDto.kt
index 16059fc1..01e97bb4 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/data/model/response/ResponseMyRetroListDto.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/data/model/response/ResponseMyRetroListDto.kt
@@ -1,5 +1,6 @@
 package com.puzzling.puzzlingaos.data.model.response
 
+import com.puzzling.puzzlingaos.domain.entity.ProjectReview
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 
@@ -12,7 +13,7 @@ data class ResponseMyRetroListDto(
     @SerialName("message")
     val message: String,
     @SerialName("data")
-    val data: List<ReviewData>?,
+    val data: List<ReviewData>,
 ) {
     @Serializable
     data class ReviewData(
@@ -23,5 +24,12 @@ data class ResponseMyRetroListDto(
         @SerialName("contents")
         val contents: String,
     )
-}
 
+    fun toProjectReview() = data.map { reviewData ->
+        ProjectReview(
+            reviewData.reviewId,
+            reviewData.reviewDate,
+            reviewData.contents,
+        )
+    }
+}
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/data/model/response/ResponseProjectRetroWeekDto.kt b/app/src/main/java/com/puzzling/puzzlingaos/data/model/response/ResponseProjectRetroWeekDto.kt
index a251cc64..4d94cfc3 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/data/model/response/ResponseProjectRetroWeekDto.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/data/model/response/ResponseProjectRetroWeekDto.kt
@@ -1,5 +1,6 @@
 package com.puzzling.puzzlingaos.data.model.response
 
+import com.puzzling.puzzlingaos.domain.entity.ReviewCycle
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 
@@ -12,7 +13,7 @@ data class ResponseProjectRetroWeekDto(
     @SerialName("message")
     val message: String,
     @SerialName("data")
-    val data: ProjectCycle?,
+    val data: ProjectCycle,
 ) {
     @Serializable
     data class ProjectCycle(
@@ -20,5 +21,7 @@ data class ResponseProjectRetroWeekDto(
         val projectName: String,
         @SerialName("projectReviewCycle")
         val projectReviewCycle: String,
-    )
+    ) {
+        fun toReviewCycle() = ReviewCycle(projectName, projectReviewCycle)
+    }
 }
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/data/repository/MyPageRepositoryImpl.kt b/app/src/main/java/com/puzzling/puzzlingaos/data/repository/MyPageRepositoryImpl.kt
index a429e304..b3a35617 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/data/repository/MyPageRepositoryImpl.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/data/repository/MyPageRepositoryImpl.kt
@@ -1,23 +1,32 @@
 package com.puzzling.puzzlingaos.data.repository
 
 import com.puzzling.puzzlingaos.data.datasource.remote.MyPageDataSource
-import com.puzzling.puzzlingaos.data.model.response.ResponseDetailRetroDto
-import com.puzzling.puzzlingaos.data.model.response.ResponseMyRetroListDto
+import com.puzzling.puzzlingaos.domain.entity.DetailRetro
+import com.puzzling.puzzlingaos.domain.entity.ProjectReview
 import com.puzzling.puzzlingaos.domain.repository.MyPageRepository
 import javax.inject.Inject
 
 class MyPageRepositoryImpl @Inject constructor(private val myPageDataSource: MyPageDataSource) :
     MyPageRepository {
-    override suspend fun getMyProjectReview(memberId: Int, projectId: Int): ResponseMyRetroListDto {
-        return myPageDataSource.getMyProjectReview(memberId, projectId)
-    }
+    override suspend fun getMyProjectReview(
+        memberId: Int,
+        projectId: Int,
+    ): Result<List<ProjectReview>> =
+        runCatching {
+            myPageDataSource.getMyProjectReview(memberId, projectId).toProjectReview()
+        }
 
     override suspend fun getMyDetailReview(
         memberId: Int,
         projectId: Int,
         startDate: String,
         endDate: String,
-    ): ResponseDetailRetroDto {
-        return myPageDataSource.getMyDetailReview(memberId, projectId, startDate, endDate)
+    ): Result<List<DetailRetro>> = runCatching {
+        myPageDataSource.getMyDetailReview(
+            memberId,
+            projectId,
+            startDate,
+            endDate,
+        ).data.toDetailRetro()
     }
 }
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/data/repository/ProjectRepositoryImpl.kt b/app/src/main/java/com/puzzling/puzzlingaos/data/repository/ProjectRepositoryImpl.kt
index 79e52d3c..ab637ca4 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/data/repository/ProjectRepositoryImpl.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/data/repository/ProjectRepositoryImpl.kt
@@ -2,12 +2,13 @@ package com.puzzling.puzzlingaos.data.repository
 
 import android.util.Log
 import com.puzzling.puzzlingaos.data.datasource.remote.ProjectDataSource
-import com.puzzling.puzzlingaos.data.model.request.RequestInvitationCode
 import com.puzzling.puzzlingaos.data.model.request.RequestProjectRegisterDto
-import com.puzzling.puzzlingaos.data.model.response.ResponseInvitationCodeDto
+import com.puzzling.puzzlingaos.data.model.request.toRequestJoinProjectDto
 import com.puzzling.puzzlingaos.data.model.response.ResponseJoinProjectDto
 import com.puzzling.puzzlingaos.data.model.response.ResponseProjectRegisterDto
-import com.puzzling.puzzlingaos.data.model.response.ResponseProjectRetroWeekDto
+import com.puzzling.puzzlingaos.domain.entity.InvitationCode
+import com.puzzling.puzzlingaos.domain.entity.JoinProjectInfo
+import com.puzzling.puzzlingaos.domain.entity.ReviewCycle
 import com.puzzling.puzzlingaos.domain.repository.ProjectRepository
 import javax.inject.Inject
 
@@ -28,16 +29,17 @@ class ProjectRepositoryImpl @Inject constructor(
 
     override suspend fun joinProject(
         memberId: Int,
-        request: RequestInvitationCode,
-    ): ResponseJoinProjectDto {
-        return projectDataSource.joinProject(memberId, request)
+        request: JoinProjectInfo,
+    ): Result<ResponseJoinProjectDto> = runCatching {
+        projectDataSource.joinProject(memberId, request.toRequestJoinProjectDto())
     }
 
-    override suspend fun isValidInvitationCode(invitationCode: String): ResponseInvitationCodeDto {
-        return projectDataSource.isValidInvitationCode(invitationCode)
-    }
+    override suspend fun isValidInvitationCode(invitationCode: String): Result<InvitationCode> =
+        runCatching {
+            projectDataSource.isValidInvitationCode(invitationCode).data.toInvitationCode()
+        }
 
-    override suspend fun getProjectWeekCycle(projectId: Int): ResponseProjectRetroWeekDto {
-        return projectDataSource.getProjectWeekCycle(projectId)
+    override suspend fun getProjectWeekCycle(projectId: Int): Result<ReviewCycle> = runCatching {
+        projectDataSource.getProjectWeekCycle(projectId).data.toReviewCycle()
     }
 }
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/data/repository/TokenRepositoryImpl.kt b/app/src/main/java/com/puzzling/puzzlingaos/data/repository/TokenRepositoryImpl.kt
new file mode 100644
index 00000000..e2f9412a
--- /dev/null
+++ b/app/src/main/java/com/puzzling/puzzlingaos/data/repository/TokenRepositoryImpl.kt
@@ -0,0 +1,16 @@
+package com.puzzling.puzzlingaos.data.repository
+
+import androidx.datastore.core.DataStore
+import com.puzzling.puzzlingaos.data.entity.Token
+import com.puzzling.puzzlingaos.domain.repository.TokenRepository
+import kotlinx.coroutines.flow.first
+import javax.inject.Inject
+
+class TokenRepositoryImpl @Inject constructor(private val dataStore: DataStore<Token>) :
+    TokenRepository {
+    override suspend fun setToken(token: String) {
+        dataStore.updateData { Token(token) }
+    }
+
+    override suspend fun getToken(): Token = dataStore.data.first()
+}
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/data/service/CryptoService.kt b/app/src/main/java/com/puzzling/puzzlingaos/data/service/CryptoService.kt
new file mode 100644
index 00000000..d052fb7a
--- /dev/null
+++ b/app/src/main/java/com/puzzling/puzzlingaos/data/service/CryptoService.kt
@@ -0,0 +1,84 @@
+package com.puzzling.puzzlingaos.data.service
+
+import android.os.Build
+import android.security.keystore.KeyGenParameterSpec
+import android.security.keystore.KeyProperties
+import androidx.annotation.RequiresApi
+import java.io.InputStream
+import java.io.OutputStream
+import java.security.KeyStore
+import javax.crypto.Cipher
+import javax.crypto.KeyGenerator
+import javax.crypto.SecretKey
+import javax.crypto.spec.IvParameterSpec
+import javax.inject.Inject
+
+@RequiresApi(Build.VERSION_CODES.M)
+class CryptoService @Inject constructor() {
+
+    private val keyStore = KeyStore.getInstance("AndroidKeyStore").apply {
+        load(null)
+    }
+
+    private val encryptCipher = Cipher.getInstance(TRANSFORMATION).apply {
+        init(Cipher.ENCRYPT_MODE, getKey())
+    }
+
+    private fun getDecryptCipher(iv: ByteArray): Cipher {
+        return Cipher.getInstance(TRANSFORMATION).apply {
+            init(Cipher.DECRYPT_MODE, getKey(), IvParameterSpec(iv))
+        }
+    }
+
+    private fun getKey(): SecretKey {
+        val existingKey = keyStore.getEntry("secret", null) as? KeyStore.SecretKeyEntry
+        return existingKey?.secretKey ?: createKey()
+    }
+
+    private fun createKey(): SecretKey {
+        return KeyGenerator.getInstance(ALGORITHM).apply {
+            init(
+                KeyGenParameterSpec.Builder(
+                    "secret",
+                    KeyProperties.PURPOSE_ENCRYPT or KeyProperties.PURPOSE_DECRYPT,
+                ).setBlockModes(BLOCK_MODE).setEncryptionPaddings(
+                    PADDING,
+                ).setUserAuthenticationRequired(false) // 지문인식 같은거 false
+                    .setRandomizedEncryptionRequired(true).build(),
+            )
+        }.generateKey()
+    }
+
+    fun encrypt(bytes: ByteArray, outputStream: OutputStream): ByteArray {
+        val encryptedBytes = encryptCipher.doFinal(bytes)
+        outputStream.use {
+            it.write(encryptCipher.iv.size)
+            it.write(encryptCipher.iv)
+            it.write(encryptedBytes.size)
+            it.write(encryptedBytes)
+        }
+
+        return encryptedBytes
+    }
+
+    fun decrypt(inputStream: InputStream): ByteArray {
+        return inputStream.use {
+            val ivSize = it.read()
+            val iv = ByteArray(ivSize)
+            it.read(iv)
+
+            val encryptedBytesSize = it.read()
+            val encryptedBytes = ByteArray(encryptedBytesSize)
+            it.read(encryptedBytes)
+
+            getDecryptCipher(iv).doFinal(encryptedBytes)
+        }
+    }
+
+    companion object {
+        private const val ALGORITHM = KeyProperties.KEY_ALGORITHM_AES
+        private const val BLOCK_MODE = KeyProperties.BLOCK_MODE_CBC
+        private const val PADDING = KeyProperties.ENCRYPTION_PADDING_PKCS7
+        private const val TRANSFORMATION = "$ALGORITHM/$BLOCK_MODE/$PADDING"
+    }
+}
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/data/service/KakaoLoginService.kt b/app/src/main/java/com/puzzling/puzzlingaos/data/service/KakaoAuthService.kt
similarity index 88%
rename from app/src/main/java/com/puzzling/puzzlingaos/data/service/KakaoLoginService.kt
rename to app/src/main/java/com/puzzling/puzzlingaos/data/service/KakaoAuthService.kt
index 335dee3c..4480d182 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/data/service/KakaoLoginService.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/data/service/KakaoAuthService.kt
@@ -3,8 +3,10 @@ package com.puzzling.puzzlingaos.data.service
 import android.content.Context
 import com.kakao.sdk.auth.model.OAuthToken
 import com.kakao.sdk.user.UserApiClient
+import dagger.hilt.android.qualifiers.ActivityContext
+import javax.inject.Inject
 
-class KakaoLoginService(private val context: Context) {
+class KakaoAuthService @Inject constructor(@ActivityContext private val context: Context) {
     fun startKakaoLogin(kakaoLoginCallBack: (OAuthToken?, Throwable?) -> Unit) {
         val kakaoLoginState =
             if (UserApiClient.instance.isKakaoTalkLoginAvailable(context)) {
@@ -20,6 +22,7 @@ class KakaoLoginService(private val context: Context) {
                     callback = kakaoLoginCallBack,
                 )
             }
+
             KAKAO_ACCOUNT_LOGIN -> {
                 UserApiClient.instance.loginWithKakaoAccount(
                     context,
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/data/service/ProjectService.kt b/app/src/main/java/com/puzzling/puzzlingaos/data/service/ProjectService.kt
index 56b89f01..aa20b455 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/data/service/ProjectService.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/data/service/ProjectService.kt
@@ -1,6 +1,6 @@
 package com.puzzling.puzzlingaos.data.service
 
-import com.puzzling.puzzlingaos.data.model.request.RequestInvitationCode
+import com.puzzling.puzzlingaos.data.model.request.RequestJoinProject
 import com.puzzling.puzzlingaos.data.model.request.RequestProjectRegisterDto
 import com.puzzling.puzzlingaos.data.model.response.ResponseInvitationCodeDto
 import com.puzzling.puzzlingaos.data.model.response.ResponseJoinProjectDto
@@ -23,7 +23,7 @@ interface ProjectService {
     @POST("api/v1/member/{memberId}/project/join")
     suspend fun joinProject(
         @Path("memberId") memberId: Int,
-        @Body request: RequestInvitationCode,
+        @Body request: RequestJoinProject,
     ): ResponseJoinProjectDto
 
     @GET("api/v1/project/verify?")
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/di/DataStoreModule.kt b/app/src/main/java/com/puzzling/puzzlingaos/di/DataStoreModule.kt
new file mode 100644
index 00000000..22a0c10d
--- /dev/null
+++ b/app/src/main/java/com/puzzling/puzzlingaos/di/DataStoreModule.kt
@@ -0,0 +1,35 @@
+package com.puzzling.puzzlingaos.di
+
+import android.content.Context
+import androidx.datastore.core.DataStore
+import androidx.datastore.core.DataStoreFactory
+import androidx.datastore.dataStoreFile
+import com.puzzling.puzzlingaos.data.datasource.local.TokenDataSource
+import com.puzzling.puzzlingaos.data.entity.Token
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.components.SingletonComponent
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+object DataStoreModule {
+    private const val USER_PREFERENCES_NAME = "user_preferences"
+    private const val DATA_STORE_FILE_NAME = "user_prefs.pb"
+
+    @Provides
+    @Singleton
+    fun providePreferencesDataStore(
+        @ApplicationContext appContext: Context,
+        tokenDataSource: TokenDataSource,
+    ): DataStore<Token> {
+        return DataStoreFactory.create(
+            serializer = tokenDataSource,
+            produceFile = {
+                appContext.dataStoreFile(DATA_STORE_FILE_NAME)
+            },
+        )
+    }
+}
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/di/RepositoryModule.kt b/app/src/main/java/com/puzzling/puzzlingaos/di/RepositoryModule.kt
index 84f96457..8f0f8594 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/di/RepositoryModule.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/di/RepositoryModule.kt
@@ -1,15 +1,7 @@
 package com.puzzling.puzzlingaos.di
 
-import com.puzzling.puzzlingaos.data.repository.MyBoardRepositoryImpl
-import com.puzzling.puzzlingaos.data.repository.MyPageRepositoryImpl
-import com.puzzling.puzzlingaos.data.repository.ProjectRepositoryImpl
-import com.puzzling.puzzlingaos.data.repository.TeamDashBoardRepositoryImpl
-import com.puzzling.puzzlingaos.data.repository.WriteReviewRepositoryImpl
-import com.puzzling.puzzlingaos.domain.repository.MyBoardRepository
-import com.puzzling.puzzlingaos.domain.repository.MyPageRepository
-import com.puzzling.puzzlingaos.domain.repository.ProjectRepository
-import com.puzzling.puzzlingaos.domain.repository.TeamDashBoardRepository
-import com.puzzling.puzzlingaos.domain.repository.WriteReviewRepository
+import com.puzzling.puzzlingaos.data.repository.*
+import com.puzzling.puzzlingaos.domain.repository.*
 import dagger.Binds
 import dagger.Module
 import dagger.hilt.InstallIn
@@ -38,4 +30,8 @@ abstract class RepositoryModule {
     @Singleton
     @Binds
     abstract fun providesWriteReviewRepository(repoImpl: WriteReviewRepositoryImpl): WriteReviewRepository
+
+    @Singleton
+    @Binds
+    abstract fun providesTokenRepository(repoImpl: TokenRepositoryImpl): TokenRepository
 }
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/domain/entity/DetailRetro.kt b/app/src/main/java/com/puzzling/puzzlingaos/domain/entity/DetailRetro.kt
new file mode 100644
index 00000000..44e5d153
--- /dev/null
+++ b/app/src/main/java/com/puzzling/puzzlingaos/domain/entity/DetailRetro.kt
@@ -0,0 +1,14 @@
+package com.puzzling.puzzlingaos.domain.entity
+
+data class DetailRetro(
+    val reviewId: Int?,
+    val reviewDay: String,
+    val reviewDate: String,
+    val reviewTemplateId: Int?,
+    val content: List<Content>?,
+) {
+    data class Content(
+        val title: String,
+        val content: String,
+    )
+}
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/domain/entity/InvitationCode.kt b/app/src/main/java/com/puzzling/puzzlingaos/domain/entity/InvitationCode.kt
new file mode 100644
index 00000000..fce590b3
--- /dev/null
+++ b/app/src/main/java/com/puzzling/puzzlingaos/domain/entity/InvitationCode.kt
@@ -0,0 +1,6 @@
+package com.puzzling.puzzlingaos.domain.entity
+
+data class InvitationCode(
+    val projectId: Int,
+    val projectName: String,
+)
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/domain/entity/JoinProjectInfo.kt b/app/src/main/java/com/puzzling/puzzlingaos/domain/entity/JoinProjectInfo.kt
new file mode 100644
index 00000000..edbf0310
--- /dev/null
+++ b/app/src/main/java/com/puzzling/puzzlingaos/domain/entity/JoinProjectInfo.kt
@@ -0,0 +1,7 @@
+package com.puzzling.puzzlingaos.domain.entity
+
+data class JoinProjectInfo(
+    val projectId: Int,
+    val memberProjectNickname: String,
+    val memberProjectRole: String,
+)
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/domain/entity/ProjectReview.kt b/app/src/main/java/com/puzzling/puzzlingaos/domain/entity/ProjectReview.kt
new file mode 100644
index 00000000..91919d40
--- /dev/null
+++ b/app/src/main/java/com/puzzling/puzzlingaos/domain/entity/ProjectReview.kt
@@ -0,0 +1,7 @@
+package com.puzzling.puzzlingaos.domain.entity
+
+data class ProjectReview(
+    val reviewId: Int,
+    val reviewDate: String,
+    val contents: String,
+)
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/domain/entity/ReviewCycle.kt b/app/src/main/java/com/puzzling/puzzlingaos/domain/entity/ReviewCycle.kt
new file mode 100644
index 00000000..72849c1f
--- /dev/null
+++ b/app/src/main/java/com/puzzling/puzzlingaos/domain/entity/ReviewCycle.kt
@@ -0,0 +1,6 @@
+package com.puzzling.puzzlingaos.domain.entity
+
+data class ReviewCycle(
+    val projectName: String,
+    val projectReviewCycle: String,
+)
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/domain/repository/MyPageRepository.kt b/app/src/main/java/com/puzzling/puzzlingaos/domain/repository/MyPageRepository.kt
index 678869c4..cc0873e0 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/domain/repository/MyPageRepository.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/domain/repository/MyPageRepository.kt
@@ -1,19 +1,19 @@
 package com.puzzling.puzzlingaos.domain.repository
 
-import com.puzzling.puzzlingaos.data.model.response.ResponseDetailRetroDto
-import com.puzzling.puzzlingaos.data.model.response.ResponseMyRetroListDto
+import com.puzzling.puzzlingaos.domain.entity.DetailRetro
+import com.puzzling.puzzlingaos.domain.entity.ProjectReview
 
 interface MyPageRepository {
 
     suspend fun getMyProjectReview(
         memberId: Int,
         projectId: Int,
-    ): ResponseMyRetroListDto
+    ): Result<List<ProjectReview>>
 
     suspend fun getMyDetailReview(
         memberId: Int,
         projectId: Int,
         startDate: String,
         endDate: String,
-    ): ResponseDetailRetroDto
+    ): Result<List<DetailRetro>>
 }
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/domain/repository/ProjectRepository.kt b/app/src/main/java/com/puzzling/puzzlingaos/domain/repository/ProjectRepository.kt
index 3e48f6cb..65ed7e4f 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/domain/repository/ProjectRepository.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/domain/repository/ProjectRepository.kt
@@ -1,11 +1,11 @@
 package com.puzzling.puzzlingaos.domain.repository
 
-import com.puzzling.puzzlingaos.data.model.request.RequestInvitationCode
 import com.puzzling.puzzlingaos.data.model.request.RequestProjectRegisterDto
-import com.puzzling.puzzlingaos.data.model.response.ResponseInvitationCodeDto
 import com.puzzling.puzzlingaos.data.model.response.ResponseJoinProjectDto
 import com.puzzling.puzzlingaos.data.model.response.ResponseProjectRegisterDto
-import com.puzzling.puzzlingaos.data.model.response.ResponseProjectRetroWeekDto
+import com.puzzling.puzzlingaos.domain.entity.InvitationCode
+import com.puzzling.puzzlingaos.domain.entity.JoinProjectInfo
+import com.puzzling.puzzlingaos.domain.entity.ReviewCycle
 
 interface ProjectRepository {
 
@@ -18,14 +18,14 @@ interface ProjectRepository {
 
     suspend fun joinProject(
         memberId: Int,
-        request: RequestInvitationCode,
-    ): ResponseJoinProjectDto
+        request: JoinProjectInfo,
+    ): Result<ResponseJoinProjectDto>
 
     suspend fun isValidInvitationCode(
         invitationCode: String,
-    ): ResponseInvitationCodeDto
+    ): Result<InvitationCode>
 
     suspend fun getProjectWeekCycle(
         projectId: Int,
-    ): ResponseProjectRetroWeekDto
+    ): Result<ReviewCycle>
 }
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/domain/repository/TokenRepository.kt b/app/src/main/java/com/puzzling/puzzlingaos/domain/repository/TokenRepository.kt
new file mode 100644
index 00000000..93f43adb
--- /dev/null
+++ b/app/src/main/java/com/puzzling/puzzlingaos/domain/repository/TokenRepository.kt
@@ -0,0 +1,9 @@
+package com.puzzling.puzzlingaos.domain.repository
+
+import com.puzzling.puzzlingaos.data.entity.Token
+
+interface TokenRepository {
+    suspend fun setToken(token: String)
+
+    suspend fun getToken(): Token
+}
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/domain/usecase/onboarding/GetTokenUseCase.kt b/app/src/main/java/com/puzzling/puzzlingaos/domain/usecase/onboarding/GetTokenUseCase.kt
new file mode 100644
index 00000000..36875199
--- /dev/null
+++ b/app/src/main/java/com/puzzling/puzzlingaos/domain/usecase/onboarding/GetTokenUseCase.kt
@@ -0,0 +1,13 @@
+package com.puzzling.puzzlingaos.domain.usecase.onboarding
+
+import com.puzzling.puzzlingaos.domain.repository.TokenRepository
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class GetTokenUseCase @Inject constructor(
+    private val tokenRepository: TokenRepository,
+) {
+
+    suspend operator fun invoke() = tokenRepository.getToken()
+}
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/domain/usecase/onboarding/PostTokenUseCase.kt b/app/src/main/java/com/puzzling/puzzlingaos/domain/usecase/onboarding/PostTokenUseCase.kt
new file mode 100644
index 00000000..dcf39d58
--- /dev/null
+++ b/app/src/main/java/com/puzzling/puzzlingaos/domain/usecase/onboarding/PostTokenUseCase.kt
@@ -0,0 +1,10 @@
+package com.puzzling.puzzlingaos.domain.usecase.onboarding
+
+import com.puzzling.puzzlingaos.domain.repository.TokenRepository
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class PostTokenUseCase @Inject constructor(private val tokenRepository: TokenRepository) {
+    suspend operator fun invoke(token: String) = tokenRepository.setToken(token)
+}
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/presentation/detailRetrospect/DetailRetroAdapter.kt b/app/src/main/java/com/puzzling/puzzlingaos/presentation/detailRetrospect/DetailRetroAdapter.kt
index 9f850c40..6a8f7d59 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/presentation/detailRetrospect/DetailRetroAdapter.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/presentation/detailRetrospect/DetailRetroAdapter.kt
@@ -6,10 +6,11 @@ import androidx.recyclerview.widget.ListAdapter
 import androidx.recyclerview.widget.RecyclerView
 import com.puzzling.puzzlingaos.data.model.response.ResponseDetailRetroDto
 import com.puzzling.puzzlingaos.databinding.ItemDetailRetroBinding
+import com.puzzling.puzzlingaos.domain.entity.DetailRetro
 import com.puzzling.puzzlingaos.util.ItemDiffCallback
 
 class DetailRetroAdapter() :
-    ListAdapter<ResponseDetailRetroDto.Data.DetailReviewData.Content, DetailRetroAdapter.DetailRetroViewHolder>(
+    ListAdapter<DetailRetro.Content, DetailRetroAdapter.DetailRetroViewHolder>(
         diffCallback,
     ) {
 
@@ -25,7 +26,7 @@ class DetailRetroAdapter() :
 
     inner class DetailRetroViewHolder(private val binding: ItemDetailRetroBinding) :
         RecyclerView.ViewHolder(binding.root) {
-        fun onBind(item: ResponseDetailRetroDto.Data.DetailReviewData.Content) {
+        fun onBind(item: DetailRetro.Content) {
             binding.tvDetailRetroTitle.text = item.title
             binding.tvDetailRetroBody.text = item.content
         }
@@ -33,7 +34,7 @@ class DetailRetroAdapter() :
 
     companion object {
         private val diffCallback =
-            ItemDiffCallback<ResponseDetailRetroDto.Data.DetailReviewData.Content>(
+            ItemDiffCallback<DetailRetro.Content>(
                 onContentsTheSame = { old, new -> old == new },
                 onItemsTheSame = { old, new -> old == new },
             )
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/presentation/detailRetrospect/DetailRetroFragment.kt b/app/src/main/java/com/puzzling/puzzlingaos/presentation/detailRetrospect/DetailRetroFragment.kt
index 0656052b..cc67a567 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/presentation/detailRetrospect/DetailRetroFragment.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/presentation/detailRetrospect/DetailRetroFragment.kt
@@ -2,6 +2,7 @@ package com.puzzling.puzzlingaos.presentation.detailRetrospect
 
 import android.os.Bundle
 import android.view.View
+import androidx.fragment.app.activityViewModels
 import androidx.lifecycle.ViewModelProvider
 // import androidx.recyclerview.widget.DividerItemDecoration
 import com.puzzling.puzzlingaos.R
@@ -15,16 +16,11 @@ class DetailRetroFragment(
 ) :
     BaseFragment<FragmentDetailRetroBinding>(R.layout.fragment_detail_retro) {
 
-    private lateinit var viewModel: DetailRetroViewModel
+    private val viewModel by activityViewModels<DetailRetroViewModel>()
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
-        viewModel = ViewModelProvider(
-            requireActivity(),
-            ViewModelFactory(requireContext()),
-        )[DetailRetroViewModel::class.java]
-
         val day = viewModel.week[position]
         val dataList = viewModel.detailRetroList.value
 
@@ -41,7 +37,7 @@ class DetailRetroFragment(
             for (data in dataList) {
                 if (day == data.reviewDay) {
                     binding.rcvDetailRetroMain.adapter = detailRetroAdapter
-                    detailRetroAdapter.submitList(data.contents)
+                    detailRetroAdapter.submitList(data.content)
                 }
             }
         }
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/presentation/detailRetrospect/DetailRetroViewModel.kt b/app/src/main/java/com/puzzling/puzzlingaos/presentation/detailRetrospect/DetailRetroViewModel.kt
index 4c785bcc..4d481bf3 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/presentation/detailRetrospect/DetailRetroViewModel.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/presentation/detailRetrospect/DetailRetroViewModel.kt
@@ -5,7 +5,7 @@ import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
-import com.puzzling.puzzlingaos.data.model.response.ResponseDetailRetroDto
+import com.puzzling.puzzlingaos.domain.entity.DetailRetro
 import com.puzzling.puzzlingaos.domain.repository.MyPageRepository
 import com.puzzling.puzzlingaos.util.UserInfo
 import dagger.hilt.android.lifecycle.HiltViewModel
@@ -17,8 +17,8 @@ import javax.inject.Inject
 @HiltViewModel
 class DetailRetroViewModel @Inject constructor(private val repository: MyPageRepository) :
     ViewModel() {
-    private val _detailRetroList = MutableLiveData<List<ResponseDetailRetroDto.Data.DetailReviewData>?>()
-    val detailRetroList: LiveData<List<ResponseDetailRetroDto.Data.DetailReviewData>?> get() = _detailRetroList
+    private val _detailRetroList = MutableLiveData<List<DetailRetro>?>()
+    val detailRetroList: LiveData<List<DetailRetro>?> get() = _detailRetroList
 
     val week = listOf(
         "월",
@@ -38,17 +38,13 @@ class DetailRetroViewModel @Inject constructor(private val repository: MyPageRep
     val projectName = MutableLiveData<String>()
 
     fun getDetailRetro(projectId: Int) = viewModelScope.launch {
-        kotlin.runCatching {
-            Log.d("상세회고조회", "startOfWeek:: $startOfWeek")
-            Log.d("상세회고조회", "endOfWeek:: $endOfWeek")
-            repository.getMyDetailReview(
-                UserInfo.GET_MEMBER_ID,
-                projectId,
-                startOfWeek.toString(),
-                endOfWeek.toString(),
-            )
-        }.onSuccess { response ->
-            _detailRetroList.value = response.data?.reviews
+        repository.getMyDetailReview(
+            UserInfo.GET_MEMBER_ID,
+            projectId,
+            startOfWeek.toString(),
+            endOfWeek.toString(),
+        ).onSuccess { response ->
+            _detailRetroList.value = response
             Log.d("상세회고조회", "response:: $response")
         }.onFailure {
             Log.d("상세회고조회", "fail:: $it")
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/presentation/home/HomeViewModel.kt b/app/src/main/java/com/puzzling/puzzlingaos/presentation/home/HomeViewModel.kt
index c6440a34..55e8a771 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/presentation/home/HomeViewModel.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/presentation/home/HomeViewModel.kt
@@ -6,8 +6,8 @@ import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.puzzling.puzzlingaos.data.model.response.ResponseMyPageProjectDto
-import com.puzzling.puzzlingaos.data.model.response.ResponseProjectRetroWeekDto
 import com.puzzling.puzzlingaos.domain.entity.Project
+import com.puzzling.puzzlingaos.domain.entity.ReviewCycle
 import com.puzzling.puzzlingaos.domain.repository.MyBoardRepository
 import com.puzzling.puzzlingaos.domain.repository.ProjectRepository
 import com.puzzling.puzzlingaos.domain.usecase.personaldashboard.GetProceedingProjectUseCase
@@ -66,8 +66,8 @@ class HomeViewModel @Inject constructor(
     val projectName: LiveData<List<String>>
         get() = _projectName
 
-    private val _retroWeek = MutableLiveData<ResponseProjectRetroWeekDto.ProjectCycle?>()
-    val retroWeek: LiveData<ResponseProjectRetroWeekDto.ProjectCycle?> get() = _retroWeek
+    private val _retroWeek = MutableLiveData<ReviewCycle?>()
+    val retroWeek: LiveData<ReviewCycle?> get() = _retroWeek
 
     val firstProjectName = MutableLiveData<String>()
 
@@ -112,12 +112,10 @@ class HomeViewModel @Inject constructor(
     }
 
     fun getProjectWeekCycle(projectId: Int) = viewModelScope.launch {
-        kotlin.runCatching {
-            projectRepository.getProjectWeekCycle(projectId)
-        }.onSuccess { response ->
-            _retroWeek.value = response.data
+        projectRepository.getProjectWeekCycle(projectId).onSuccess { response ->
+            _retroWeek.value = response
             Log.d("회고 주기", "$response")
-            Log.d("회고 주기", "${response.data?.projectReviewCycle}")
+            Log.d("회고 주기", "${response.projectReviewCycle}")
         }.onFailure {
             Log.d("회고 주기", "$it")
         }
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/presentation/invitationCode/InvitationCodeViewModel.kt b/app/src/main/java/com/puzzling/puzzlingaos/presentation/invitationCode/InvitationCodeViewModel.kt
index bbdb7641..28570801 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/presentation/invitationCode/InvitationCodeViewModel.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/presentation/invitationCode/InvitationCodeViewModel.kt
@@ -2,8 +2,8 @@ package com.puzzling.puzzlingaos.presentation.invitationCode
 
 import android.util.Log
 import androidx.lifecycle.*
-import com.puzzling.puzzlingaos.data.model.request.RequestInvitationCode
-import com.puzzling.puzzlingaos.data.model.response.ResponseInvitationCodeDto
+import com.puzzling.puzzlingaos.domain.entity.InvitationCode
+import com.puzzling.puzzlingaos.domain.entity.JoinProjectInfo
 import com.puzzling.puzzlingaos.domain.repository.ProjectRepository
 import com.puzzling.puzzlingaos.util.UserInfo
 import dagger.hilt.android.lifecycle.HiltViewModel
@@ -43,7 +43,7 @@ class InvitationCodeViewModel @Inject constructor(private val repository: Projec
     }.stateIn(viewModelScope, SharingStarted.WhileSubscribed(), true)
 
     private val _codeResponse =
-        MutableStateFlow<ResponseInvitationCodeDto.InvitationCodeData?>(null)
+        MutableStateFlow<InvitationCode?>(null)
     val codeResponse = _codeResponse.asStateFlow()
 
     private val _isCodeSucces = MutableStateFlow<Boolean?>(null)
@@ -104,11 +104,9 @@ class InvitationCodeViewModel @Inject constructor(private val repository: Projec
         }.stateIn(viewModelScope, SharingStarted.WhileSubscribed(), true)
 
     fun isCodeValid() = viewModelScope.launch {
-        kotlin.runCatching {
-            repository.isValidInvitationCode(inputCode.value)
-        }.onSuccess { response ->
+        repository.isValidInvitationCode(inputCode.value).onSuccess { response ->
             _isCodeSucces.value = true
-            _codeResponse.value = response.data
+            _codeResponse.value = response
             Log.d("초대코드", "$response")
         }.onFailure {
             _isCodeSucces.value = false
@@ -117,16 +115,14 @@ class InvitationCodeViewModel @Inject constructor(private val repository: Projec
     }
 
     fun joinProject() = viewModelScope.launch {
-        kotlin.runCatching {
-            repository.joinProject(
-                UserInfo.POST_MEMBER_ID,
-                RequestInvitationCode(
-                    codeResponse.value!!.projectId,
-                    inputNickName.value,
-                    inputRole.value,
-                ),
-            )
-        }.onSuccess { response ->
+        repository.joinProject(
+            UserInfo.POST_MEMBER_ID,
+            JoinProjectInfo(
+                codeResponse.value!!.projectId,
+                inputNickName.value,
+                inputRole.value,
+            ),
+        ).onSuccess { response ->
             _isProfileSucces.value = true
             Log.d("프로젝트 참여하기", "프로젝트 참여하기 $response")
         }.onFailure {
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/ChooseProjectBottomFragment.kt b/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/ChooseProjectBottomFragment.kt
index 859f7f28..89a9fd25 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/ChooseProjectBottomFragment.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/ChooseProjectBottomFragment.kt
@@ -1,13 +1,11 @@
 package com.puzzling.puzzlingaos.presentation.mypage
 
 import android.os.Bundle
-import android.util.Log
 import android.view.View
-import androidx.lifecycle.ViewModelProvider
+import androidx.fragment.app.activityViewModels
 import androidx.lifecycle.lifecycleScope
 import com.puzzling.puzzlingaos.R
 import com.puzzling.puzzlingaos.base.BottomSheetDialogFragment
-import com.puzzling.puzzlingaos.data.model.response.ResponseMyPageProjectDto
 import com.puzzling.puzzlingaos.databinding.FragmentBottomChooseProjectBinding
 import com.puzzling.puzzlingaos.domain.entity.Project
 import com.puzzling.puzzlingaos.presentation.mypage.adapter.ChooseProjectAdapter
@@ -17,32 +15,10 @@ import kotlinx.coroutines.launch
 class ChooseProjectBottomFragment :
     BottomSheetDialogFragment<FragmentBottomChooseProjectBinding>(R.layout.fragment_bottom_choose_project) {
 
-    private lateinit var viewModel: MyRetrospectViewModel
-
-    private val dummyItemList = mutableListOf<ResponseMyPageProjectDto>(
-        ResponseMyPageProjectDto("Piickle", "2023-07-03", 2),
-        ResponseMyPageProjectDto("HARA", "2023-07-28", 3),
-        ResponseMyPageProjectDto("낫투두", "2023-07-12", 4),
-        ResponseMyPageProjectDto("PEEKABOOK", "2023-07-20", 5),
-        ResponseMyPageProjectDto("킵고잇", "2023-06-25", 8),
-        ResponseMyPageProjectDto("킵고잇", "2023-06-25", 8),
-        ResponseMyPageProjectDto("Piickle", "2023-07-03", 2),
-        ResponseMyPageProjectDto("HARA", "2023-07-28", 3),
-        ResponseMyPageProjectDto("낫투두", "2023-07-12", 4),
-        ResponseMyPageProjectDto("PEEKABOOK", "2023-07-20", 5),
-        ResponseMyPageProjectDto("킵고잇", "2023-06-25", 8),
-        ResponseMyPageProjectDto("킵고잇", "2023-06-25", 8),
-        ResponseMyPageProjectDto("Piickle", "2023-07-03", 2),
-        ResponseMyPageProjectDto("HARA", "2023-07-28", 3),
-        ResponseMyPageProjectDto("낫투두", "2023-07-12", 4),
-        ResponseMyPageProjectDto("PEEKABOOK", "2023-07-20", 5),
-        ResponseMyPageProjectDto("킵고잇", "2023-06-25", 8),
-        ResponseMyPageProjectDto("킵고잇", "2023-06-25", 8),
-    )
+    private val viewModel by activityViewModels<MyRetrospectViewModel>()
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-        viewModel = ViewModelProvider(requireActivity())[MyRetrospectViewModel::class.java]
         initAdapter()
     }
 
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/MyPageFragment.kt b/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/MyPageFragment.kt
index b30c3e45..8b7451e6 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/MyPageFragment.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/MyPageFragment.kt
@@ -8,12 +8,10 @@ import android.view.View
 import androidx.core.content.ContextCompat
 import androidx.core.view.isVisible
 import androidx.fragment.app.activityViewModels
-import androidx.lifecycle.ViewModelProvider
 import androidx.recyclerview.widget.ConcatAdapter
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.puzzling.puzzlingaos.R
 import com.puzzling.puzzlingaos.base.BaseFragment
-import com.puzzling.puzzlingaos.data.model.response.ResponseMyPageProjectDto
 import com.puzzling.puzzlingaos.databinding.FragmentMyPageBinding
 import com.puzzling.puzzlingaos.domain.entity.Project
 import com.puzzling.puzzlingaos.presentation.home.HomeFragment
@@ -27,22 +25,12 @@ import dagger.hilt.android.AndroidEntryPoint
 @AndroidEntryPoint
 class MyPageFragment : BaseFragment<FragmentMyPageBinding>(R.layout.fragment_my_page) {
 
-    private lateinit var viewModel: MyRetrospectViewModel
+    private val viewModel by activityViewModels<MyRetrospectViewModel>()
     private val personalViewModel by activityViewModels<PersonalDashboardViewModel>()
     private val homeViewModel by activityViewModels<HomeViewModel>()
 
-    private val dummyItemList = mutableListOf<ResponseMyPageProjectDto>(
-        ResponseMyPageProjectDto("Piickle", "2023-07-03", 2),
-        ResponseMyPageProjectDto("HARA", "2023-07-28", 3),
-        ResponseMyPageProjectDto("낫투두", "2023-07-12", 4),
-        ResponseMyPageProjectDto("PEEKABOOK", "2023-07-20", 5),
-        ResponseMyPageProjectDto("킵고잇", "2023-06-25", 8),
-        ResponseMyPageProjectDto("킵고잇", "2023-06-25", 8),
-    )
-
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-        viewModel = ViewModelProvider(requireActivity())[MyRetrospectViewModel::class.java]
         viewModel.getMyProjectList()
         homeViewModel.selectedProjectId.observe(this) {
             viewModel.getProjectWeekCycle(it)
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/MyRetrospectFragment.kt b/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/MyRetrospectFragment.kt
index 2f3e4020..93af2033 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/MyRetrospectFragment.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/MyRetrospectFragment.kt
@@ -10,8 +10,8 @@ import androidx.recyclerview.widget.ConcatAdapter
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.puzzling.puzzlingaos.R
 import com.puzzling.puzzlingaos.base.BaseFragment
-import com.puzzling.puzzlingaos.data.model.response.ResponseMyRetroListDto
 import com.puzzling.puzzlingaos.databinding.FragmentMyRetrospectBinding
+import com.puzzling.puzzlingaos.domain.entity.ProjectReview
 import com.puzzling.puzzlingaos.presentation.detailRetrospect.DetailRetroActivity
 import com.puzzling.puzzlingaos.presentation.mypage.adapter.MyRetroContentAdapter
 import com.puzzling.puzzlingaos.presentation.mypage.adapter.MyRetroTitleAdapter
@@ -24,25 +24,12 @@ class MyRetrospectFragment :
     private lateinit var viewModel: MyRetrospectViewModel
     private var currentTitle = "piikle"
 
-    private val dummyItemList = mutableListOf(
-        ResponseMyRetroListDto.ReviewData(23, "2023-07-12", "여기는 20글자 정도 노출되고,,"),
-        ResponseMyRetroListDto.ReviewData(
-            12,
-            "2023-07-24",
-            "유저가 회고 템플릿에서 가장 첫 번째 인풋창에 입력한 값 노출.. ",
-        ),
-        ResponseMyRetroListDto.ReviewData(5, "2023-07-27", "여기는18글자정도노출되고나머지부분..."),
-        ResponseMyRetroListDto.ReviewData(7, "2023-07-5", "여기는18글자정도노출되고나머지부분..."),
-        ResponseMyRetroListDto.ReviewData(8, "2023-08-02", "여기는18글자정도노출되고나머지부분..."),
-        ResponseMyRetroListDto.ReviewData(10, "2023-06-22", "여기는18글자정도노출되고나머지부분..."),
-    )
-
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
         viewModel = ViewModelProvider(requireActivity())[MyRetrospectViewModel::class.java]
         viewModel.currentProject.observe(this) {
-            Log.d("myPage 회고 뷰", "${it}")
+            Log.d("myPage 회고 뷰", "$it")
             viewModel.getMyProjectReview(it.projectId)
         }
         initToolbar()
@@ -84,7 +71,7 @@ class MyRetrospectFragment :
 
         myRetroContentAdapter.setOnItemClickListener(object :
             MyRetroContentAdapter.OnItemClickListener {
-            override fun onItemClick(v: View, item: ResponseMyRetroListDto.ReviewData, pos: Int) {
+            override fun onItemClick(v: View, item: ProjectReview, pos: Int) {
                 val intent = Intent(activity, DetailRetroActivity::class.java)
                 intent.putExtra("Title", viewModel.currentProject.value?.projectName)
                 intent.putExtra("homeProjectId", viewModel.currentProject.value?.projectId)
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/MyRetrospectViewModel.kt b/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/MyRetrospectViewModel.kt
index 4645a66e..f073de32 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/MyRetrospectViewModel.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/MyRetrospectViewModel.kt
@@ -5,9 +5,9 @@ import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
-import com.puzzling.puzzlingaos.data.model.response.ResponseMyRetroListDto
-import com.puzzling.puzzlingaos.data.model.response.ResponseProjectRetroWeekDto
 import com.puzzling.puzzlingaos.domain.entity.Project
+import com.puzzling.puzzlingaos.domain.entity.ProjectReview
+import com.puzzling.puzzlingaos.domain.entity.ReviewCycle
 import com.puzzling.puzzlingaos.domain.repository.MyBoardRepository
 import com.puzzling.puzzlingaos.domain.repository.MyPageRepository
 import com.puzzling.puzzlingaos.domain.repository.ProjectRepository
@@ -23,8 +23,8 @@ class MyRetrospectViewModel @Inject constructor(
 ) :
     ViewModel() {
 
-    private val _responseReview = MutableLiveData<List<ResponseMyRetroListDto.ReviewData>?>()
-    val responseReveiew: LiveData<List<ResponseMyRetroListDto.ReviewData>?> get() = _responseReview
+    private val _responseReview = MutableLiveData<List<ProjectReview>?>()
+    val responseReveiew: LiveData<List<ProjectReview>?> get() = _responseReview
 
     private var _responseProjectList: MutableLiveData<List<Project>> = MutableLiveData()
     val responseProjectList: LiveData<List<Project>>
@@ -33,14 +33,12 @@ class MyRetrospectViewModel @Inject constructor(
     private val _currentProject = MutableLiveData<Project>()
     val currentProject: LiveData<Project> get() = _currentProject
 
-    private val _retroWeek = MutableLiveData<ResponseProjectRetroWeekDto.ProjectCycle?>()
-    val retroWeek: LiveData<ResponseProjectRetroWeekDto.ProjectCycle?> get() = _retroWeek
+    private val _retroWeek = MutableLiveData<ReviewCycle?>()
+    val retroWeek: LiveData<ReviewCycle?> get() = _retroWeek
 
     fun getMyProjectReview(selectedProjectId: Int) = viewModelScope.launch {
-        kotlin.runCatching {
-            myPageRepository.getMyProjectReview(1, selectedProjectId)
-        }.onSuccess { response ->
-            _responseReview.value = response.data
+        myPageRepository.getMyProjectReview(1, selectedProjectId).onSuccess { response ->
+            _responseReview.value = response
             Log.d("MyProjectRetro", "$response")
         }.onFailure {
             Log.d("MyProjectRetro", "$it")
@@ -64,12 +62,10 @@ class MyRetrospectViewModel @Inject constructor(
     // 2425350570
 
     fun getProjectWeekCycle(projectId: Int) = viewModelScope.launch {
-        kotlin.runCatching {
-            projectRepository.getProjectWeekCycle(projectId)
-        }.onSuccess { response ->
-            _retroWeek.value = response.data
+        projectRepository.getProjectWeekCycle(projectId).onSuccess { response ->
+            _retroWeek.value = response
             Log.d("회고 주기", "$response")
-            Log.d("회고 주기", "${response.data?.projectReviewCycle}")
+            Log.d("회고 주기", "${response.projectReviewCycle}")
         }.onFailure {
             Log.d("회고 주기", "$it")
         }
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/adapter/MyRetroContentAdapter.kt b/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/adapter/MyRetroContentAdapter.kt
index 2f7ac65c..1e91dfcf 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/adapter/MyRetroContentAdapter.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/presentation/mypage/adapter/MyRetroContentAdapter.kt
@@ -5,12 +5,12 @@ import android.view.View
 import android.view.ViewGroup
 import androidx.recyclerview.widget.ListAdapter
 import androidx.recyclerview.widget.RecyclerView
-import com.puzzling.puzzlingaos.data.model.response.ResponseMyRetroListDto
 import com.puzzling.puzzlingaos.databinding.ItemMyretroRetroBinding
+import com.puzzling.puzzlingaos.domain.entity.ProjectReview
 import com.puzzling.puzzlingaos.util.ItemDiffCallback
 
 class MyRetroContentAdapter() :
-    ListAdapter<ResponseMyRetroListDto.ReviewData, MyRetroContentAdapter.MyRetroContenViewHolder>(
+    ListAdapter<ProjectReview, MyRetroContentAdapter.MyRetroContenViewHolder>(
         diffCallback,
     ) {
 
@@ -28,7 +28,7 @@ class MyRetroContentAdapter() :
 
     inner class MyRetroContenViewHolder(private val binding: ItemMyretroRetroBinding) :
         RecyclerView.ViewHolder(binding.root) {
-        fun onBind(item: ResponseMyRetroListDto.ReviewData) {
+        fun onBind(item: ProjectReview) {
             binding.tvMyretroDate.text = item.reviewDate
 
             if (item.contents.length < 17) {
@@ -40,14 +40,14 @@ class MyRetroContentAdapter() :
 
             if (bindingAdapterPosition != RecyclerView.NO_POSITION) {
                 binding.clMyRetroContainer.setOnClickListener {
-                    listener?.onItemClick(itemView,item, bindingAdapterPosition)
+                    listener?.onItemClick(itemView, item, bindingAdapterPosition)
                 }
             }
         }
     }
 
     interface OnItemClickListener {
-        fun onItemClick(v: View, item:ResponseMyRetroListDto.ReviewData, pos: Int)
+        fun onItemClick(v: View, item: ProjectReview, pos: Int)
     }
 
     fun setOnItemClickListener(listener: OnItemClickListener) {
@@ -56,7 +56,7 @@ class MyRetroContentAdapter() :
 
     companion object {
         private val diffCallback =
-            ItemDiffCallback<ResponseMyRetroListDto.ReviewData>(
+            ItemDiffCallback<ProjectReview>(
                 onContentsTheSame = { old, new -> old == new },
                 onItemsTheSame = { old, new -> old == new },
             )
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/presentation/onboarding/LoginActivity.kt b/app/src/main/java/com/puzzling/puzzlingaos/presentation/onboarding/LoginActivity.kt
index 774d492d..bbfd50df 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/presentation/onboarding/LoginActivity.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/presentation/onboarding/LoginActivity.kt
@@ -2,19 +2,27 @@ package com.puzzling.puzzlingaos.presentation.onboarding
 
 import android.content.Intent
 import android.os.Bundle
+import android.util.Log
 import androidx.activity.viewModels
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.lifecycleScope
 import androidx.lifecycle.repeatOnLifecycle
 import com.puzzling.puzzlingaos.R
 import com.puzzling.puzzlingaos.base.BaseActivity
+import com.puzzling.puzzlingaos.data.service.KakaoAuthService
 import com.puzzling.puzzlingaos.databinding.ActivityLoginBinding
-import com.puzzling.puzzlingaos.util.ViewModelFactory
+import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.launch
+import javax.inject.Inject
 
+@AndroidEntryPoint
 class LoginActivity : BaseActivity<ActivityLoginBinding>(R.layout.activity_login) {
 
-    private val viewModel: LoginViewModel by viewModels { ViewModelFactory(this) }
+    @Inject
+    lateinit var kakakoAuthService: KakaoAuthService
+
+    private val viewModel: LoginViewModel by viewModels()
+
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -24,13 +32,13 @@ class LoginActivity : BaseActivity<ActivityLoginBinding>(R.layout.activity_login
 
     private fun startKakaoLogin() {
         binding.ibLoginKakao.setOnClickListener {
-            viewModel.kakaoLogin()
+            kakakoAuthService.startKakaoLogin(viewModel.kakaoLoginCallback)
         }
     }
 
     private fun isKakaoLoginSuccess() {
         lifecycleScope.launch {
-            repeatOnLifecycle(Lifecycle.State.RESUMED) {
+            repeatOnLifecycle(Lifecycle.State.STARTED) {
                 viewModel.isKakaoLogin.collect { isLoginSuccess ->
                     if (isLoginSuccess) {
                         val intent =
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/presentation/onboarding/LoginViewModel.kt b/app/src/main/java/com/puzzling/puzzlingaos/presentation/onboarding/LoginViewModel.kt
index 67a747c0..6b60acba 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/presentation/onboarding/LoginViewModel.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/presentation/onboarding/LoginViewModel.kt
@@ -1,29 +1,37 @@
 package com.puzzling.puzzlingaos.presentation.onboarding
 
+import android.util.Log
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.kakao.sdk.auth.model.OAuthToken
 import com.puzzling.puzzlingaos.data.datasource.local.LocalDataSource
-import com.puzzling.puzzlingaos.data.service.KakaoLoginService
+import com.puzzling.puzzlingaos.domain.usecase.onboarding.GetTokenUseCase
+import com.puzzling.puzzlingaos.domain.usecase.onboarding.PostTokenUseCase
 import com.puzzling.puzzlingaos.util.KakaoLoginCallback
+import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.launch
-import timber.log.Timber
+import javax.inject.Inject
 
-class LoginViewModel(private val kakaoLoginService: KakaoLoginService) : ViewModel() {
+@HiltViewModel
+class LoginViewModel @Inject constructor(
+    private val postTokenUseCase: PostTokenUseCase,
+    private val getTokenUseCase: GetTokenUseCase,
+) :
+    ViewModel() {
     private val _isKakaoLogin = MutableStateFlow(false)
     val isKakaoLogin = _isKakaoLogin.asStateFlow()
 
     val kakaoLoginCallback: (OAuthToken?, Throwable?) -> Unit = { token, error ->
         KakaoLoginCallback {
             _isKakaoLogin.value = true
-            Timber.d("토큰!!!! $token")
+            Log.d("LoginViewModel", "토큰!! $token")
             LocalDataSource.setAccessToken("$token")
+            viewModelScope.launch {
+                postTokenUseCase.invoke(it)
+                Log.d("LoginViewModel", "토큰!! usecase ${getTokenUseCase.invoke()}")
+            }
         }.handleResult(token, error)
     }
-
-    fun kakaoLogin() = viewModelScope.launch {
-        kakaoLoginService.startKakaoLogin(kakaoLoginCallback)
-    }
 }
diff --git a/app/src/main/java/com/puzzling/puzzlingaos/util/ViewModelFactory.kt b/app/src/main/java/com/puzzling/puzzlingaos/util/ViewModelFactory.kt
index 4fbe7331..bf6a5503 100644
--- a/app/src/main/java/com/puzzling/puzzlingaos/util/ViewModelFactory.kt
+++ b/app/src/main/java/com/puzzling/puzzlingaos/util/ViewModelFactory.kt
@@ -3,9 +3,6 @@ package com.puzzling.puzzlingaos.util
 import android.content.Context
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider
-import com.puzzling.puzzlingaos.data.service.KakaoLoginService
-import com.puzzling.puzzlingaos.presentation.invitationCode.InvitationCodeViewModel
-import com.puzzling.puzzlingaos.presentation.onboarding.LoginViewModel
 
 class ViewModelFactory(private val context: Context) : ViewModelProvider.Factory {
     override fun <T : ViewModel> create(modelClass: Class<T>): T {
@@ -14,10 +11,10 @@ class ViewModelFactory(private val context: Context) : ViewModelProvider.Factory
 //                InvitationCodeViewModel(context) as T
 //            }
 
-            modelClass.isAssignableFrom(LoginViewModel::class.java) -> {
-                val repository = KakaoLoginService(context)
-                LoginViewModel(repository) as T
-            }
+//            modelClass.isAssignableFrom(LoginViewModel::class.java) -> {
+//                val repository = KakaoAuthService(context)
+//                LoginViewModel(repository) as T
+//            }
 
             else -> {
                 throw java.lang.IllegalArgumentException("Unknown ViewModel")