diff --git a/app/build.gradle b/app/build.gradle
index 1462bad..1ce5ccf 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -3,6 +3,9 @@ plugins {
     id 'org.jetbrains.kotlin.android'
     id 'kotlin-parcelize'
     id 'org.jetbrains.kotlin.plugin.serialization' version '1.9.0'
+    id 'com.google.dagger.hilt.android'
+    id 'kotlin-android'
+    id 'kotlin-kapt'
 }
 
 Properties properties = new Properties()
@@ -74,4 +77,7 @@ dependencies {
     implementation("com.squareup.okhttp3:logging-interceptor")
 
     implementation ("com.github.bumptech.glide:glide:4.16.0")
+
+    implementation 'com.google.dagger:hilt-android:2.51'
+    kapt 'com.google.dagger:hilt-compiler:2.51.1'
 }
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 16fcdd1..e97c83e 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -5,6 +5,7 @@
     <uses-permission android:name="android.permission.INTERNET" />
 
     <application
+        android:name=".NowSopt"
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"
@@ -17,10 +18,10 @@
         android:windowSoftInputMode="adjustResize"
         tools:targetApi="31">
         <activity
-            android:name=".ui.changePwd.ChangePwdActivity"
+            android:name=".presentation.changePwd.ChangePwdActivity"
             android:exported="false" />
         <activity
-            android:name=".ui.login.LoginActivity"
+            android:name=".presentation.login.LoginActivity"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -29,10 +30,10 @@
             </intent-filter>
         </activity>
         <activity
-            android:name=".ui.signUp.SignUpActivity"
+            android:name=".presentation.signUp.SignUpActivity"
             android:exported="false" />
         <activity
-            android:name=".ui.main.MainActivity"
+            android:name=".presentation.main.MainActivity"
             android:exported="false"></activity>
     </application>
 
diff --git a/app/src/main/java/com/sopt/now/NowSopt.kt b/app/src/main/java/com/sopt/now/NowSopt.kt
new file mode 100644
index 0000000..e087b64
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/NowSopt.kt
@@ -0,0 +1,21 @@
+package com.sopt.now
+
+import android.app.Application
+import android.content.Context
+import androidx.appcompat.app.AppCompatDelegate
+import dagger.hilt.android.HiltAndroidApp
+
+@HiltAndroidApp
+class NowSopt : Application() {
+    override fun onCreate() {
+        super.onCreate()
+        appContext = applicationContext
+
+        AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO)
+    }
+
+    companion object {
+        lateinit var appContext: Context
+            private set
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/data/datasource/AuthDataSource.kt b/app/src/main/java/com/sopt/now/data/datasource/AuthDataSource.kt
new file mode 100644
index 0000000..d6546fe
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/datasource/AuthDataSource.kt
@@ -0,0 +1,14 @@
+package com.sopt.now.data.datasource
+
+import com.sopt.now.data.dto.request.RequestLoginDto
+import com.sopt.now.data.dto.request.RequestSignUpDto
+import com.sopt.now.data.dto.response.ResponseLoginDto
+import com.sopt.now.data.dto.response.ResponseSignUpDto
+import retrofit2.Response
+import javax.inject.Singleton
+
+@Singleton
+interface AuthDataSource {
+    suspend fun signUp(request: RequestSignUpDto): Response<ResponseSignUpDto>
+    suspend fun login(request: RequestLoginDto): Response<ResponseLoginDto>
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/data/datasource/FriendDataSource.kt b/app/src/main/java/com/sopt/now/data/datasource/FriendDataSource.kt
new file mode 100644
index 0000000..e233ddc
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/datasource/FriendDataSource.kt
@@ -0,0 +1,10 @@
+package com.sopt.now.data.datasource
+
+import com.sopt.now.data.dto.response.ResponseFriendsDto
+import retrofit2.Response
+import javax.inject.Singleton
+
+@Singleton
+interface FriendDataSource {
+    suspend fun getFriends(page: Int): Response<ResponseFriendsDto>
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/data/datasource/UserDataSource.kt b/app/src/main/java/com/sopt/now/data/datasource/UserDataSource.kt
new file mode 100644
index 0000000..128fd8b
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/datasource/UserDataSource.kt
@@ -0,0 +1,13 @@
+package com.sopt.now.data.datasource
+
+import com.sopt.now.data.dto.request.RequestChangePwdDto
+import com.sopt.now.data.dto.response.ResponseChangePwdDto
+import com.sopt.now.data.dto.response.ResponseUserInfoDto
+import retrofit2.Response
+import javax.inject.Singleton
+
+@Singleton
+interface UserDataSource {
+    suspend fun getUserInfo(userId: Int): Response<ResponseUserInfoDto>
+    suspend fun changeUserPwd(userId: Int, pwd: RequestChangePwdDto): Response<ResponseChangePwdDto>
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/data/datasourceImpl/AuthDataSourceImpl.kt b/app/src/main/java/com/sopt/now/data/datasourceImpl/AuthDataSourceImpl.kt
new file mode 100644
index 0000000..1d8fa90
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/datasourceImpl/AuthDataSourceImpl.kt
@@ -0,0 +1,24 @@
+package com.sopt.now.data.datasourceImpl
+
+import com.sopt.now.data.datasource.AuthDataSource
+import com.sopt.now.data.dto.request.RequestLoginDto
+import com.sopt.now.data.dto.request.RequestSignUpDto
+import com.sopt.now.data.dto.response.ResponseLoginDto
+import com.sopt.now.data.dto.response.ResponseSignUpDto
+import com.sopt.now.data.service.AuthService
+import retrofit2.Response
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class AuthDataSourceImpl @Inject constructor(
+    private val authService: AuthService
+) : AuthDataSource {
+    override suspend fun signUp(request: RequestSignUpDto): Response<ResponseSignUpDto> {
+        return authService.signUp(request)
+    }
+
+    override suspend fun login(request: RequestLoginDto): Response<ResponseLoginDto> {
+        return authService.login(request)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/data/datasourceImpl/FriendDataSourceImpl.kt b/app/src/main/java/com/sopt/now/data/datasourceImpl/FriendDataSourceImpl.kt
new file mode 100644
index 0000000..83db98f
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/datasourceImpl/FriendDataSourceImpl.kt
@@ -0,0 +1,17 @@
+package com.sopt.now.data.datasourceImpl
+
+import com.sopt.now.data.datasource.FriendDataSource
+import com.sopt.now.data.dto.response.ResponseFriendsDto
+import com.sopt.now.data.service.FriendService
+import retrofit2.Response
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class FriendDataSourceImpl @Inject constructor(
+    private val friendService: FriendService
+) : FriendDataSource {
+    override suspend fun getFriends(page: Int): Response<ResponseFriendsDto> {
+        return friendService.getFriends(page)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/data/datasourceImpl/UserDataSourceImpl.kt b/app/src/main/java/com/sopt/now/data/datasourceImpl/UserDataSourceImpl.kt
new file mode 100644
index 0000000..2e02b62
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/datasourceImpl/UserDataSourceImpl.kt
@@ -0,0 +1,26 @@
+package com.sopt.now.data.datasourceImpl
+
+import com.sopt.now.data.datasource.UserDataSource
+import com.sopt.now.data.dto.request.RequestChangePwdDto
+import com.sopt.now.data.dto.response.ResponseChangePwdDto
+import com.sopt.now.data.dto.response.ResponseUserInfoDto
+import com.sopt.now.data.service.UserService
+import retrofit2.Response
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class UserDataSourceImpl @Inject constructor(
+    private val userService: UserService
+) : UserDataSource {
+    override suspend fun getUserInfo(userId: Int): Response<ResponseUserInfoDto> {
+        return userService.getUserInfo(userId)
+    }
+
+    override suspend fun changeUserPwd(
+        userId: Int,
+        pwd: RequestChangePwdDto
+    ): Response<ResponseChangePwdDto> {
+        return userService.changeUserPwd(userId, pwd)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/data/di/DataModule.kt b/app/src/main/java/com/sopt/now/data/di/DataModule.kt
new file mode 100644
index 0000000..d8bbdd5
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/di/DataModule.kt
@@ -0,0 +1,73 @@
+package com.sopt.now.data.di
+
+import com.sopt.now.data.datasource.AuthDataSource
+import com.sopt.now.data.datasource.FriendDataSource
+import com.sopt.now.data.datasource.UserDataSource
+import com.sopt.now.data.datasourceImpl.AuthDataSourceImpl
+import com.sopt.now.data.datasourceImpl.FriendDataSourceImpl
+import com.sopt.now.data.datasourceImpl.UserDataSourceImpl
+import com.sopt.now.data.repositoryImpl.AuthRepositoryImpl
+import com.sopt.now.data.repositoryImpl.FriendRepositoryImpl
+import com.sopt.now.data.repositoryImpl.UserRepositoryImpl
+import com.sopt.now.data.service.AuthService
+import com.sopt.now.data.service.FriendService
+import com.sopt.now.data.service.UserService
+import com.sopt.now.domain.repository.AuthRepository
+import com.sopt.now.domain.repository.FriendRepository
+import com.sopt.now.domain.repository.UserRepository
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+object DataModule {
+    @Singleton
+    @Provides
+    fun provideAuthDataSource(
+        authService: AuthService
+    ): AuthDataSource {
+        return AuthDataSourceImpl(authService)
+    }
+
+    @Singleton
+    @Provides
+    fun provideAuthRepository(
+        authDataSource: AuthDataSource
+    ): AuthRepository {
+        return AuthRepositoryImpl(authDataSource)
+    }
+    @Singleton
+    @Provides
+    fun provideUserDataSource(
+        userService: UserService
+    ): UserDataSource {
+        return UserDataSourceImpl(userService)
+    }
+
+    @Singleton
+    @Provides
+    fun provideUserRepository(
+        userDataSource: UserDataSource
+    ): UserRepository {
+        return UserRepositoryImpl(userDataSource)
+    }
+
+    @Singleton
+    @Provides
+    fun provideFriendDataSource(
+        friendService: FriendService
+    ): FriendDataSource {
+        return FriendDataSourceImpl(friendService)
+    }
+
+    @Singleton
+    @Provides
+    fun provideFriendRepository(
+        friendDataSource: FriendDataSource
+    ): FriendRepository {
+        return FriendRepositoryImpl(friendDataSource)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/data/di/NetworkModule.kt b/app/src/main/java/com/sopt/now/data/di/NetworkModule.kt
new file mode 100644
index 0000000..2b56f02
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/di/NetworkModule.kt
@@ -0,0 +1,67 @@
+package com.sopt.now.data.di
+
+import android.util.Log
+import com.jakewharton.retrofit2.converter.kotlinx.serialization.asConverterFactory
+import com.sopt.now.BuildConfig.AUTH_BASE_URL
+import com.sopt.now.BuildConfig.FRIEND_BASE_URL
+import com.sopt.now.data.service.AuthService
+import com.sopt.now.data.service.FriendService
+import com.sopt.now.data.service.UserService
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import kotlinx.serialization.json.Json
+import okhttp3.Interceptor
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.OkHttpClient
+import okhttp3.logging.HttpLoggingInterceptor
+import retrofit2.Retrofit
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+object NetworkModule {
+    private const val CONTENT_TYPE = "application/json"
+    private val json: Json = Json {
+        ignoreUnknownKeys = true
+    }
+
+    private fun getLogOkHttpClient(): Interceptor {
+        val loggingInterceptor = HttpLoggingInterceptor { message ->
+            Log.d("OkHttp", message)
+        }
+        loggingInterceptor.level = HttpLoggingInterceptor.Level.BODY
+        return loggingInterceptor
+    }
+
+    private val okHttpClient = OkHttpClient.Builder()
+        .addInterceptor(getLogOkHttpClient())
+        .build()
+
+    @Singleton
+    @Provides
+    fun provideRetrofit(): Retrofit.Builder {
+        return Retrofit.Builder()
+            .addConverterFactory(json.asConverterFactory(CONTENT_TYPE.toMediaType()))
+            .client(okHttpClient)
+    }
+
+    @Singleton
+    @Provides
+    fun provideAuthService(retrofit: Retrofit.Builder): AuthService {
+        return retrofit.baseUrl(AUTH_BASE_URL).build().create(AuthService::class.java)
+    }
+
+    @Singleton
+    @Provides
+    fun provideUserService(retrofit: Retrofit.Builder): UserService {
+        return retrofit.baseUrl(AUTH_BASE_URL).build().create(UserService::class.java)
+    }
+
+    @Singleton
+    @Provides
+    fun provideFriendService(retrofit: Retrofit.Builder): FriendService {
+        return retrofit.baseUrl(FRIEND_BASE_URL).build().create(FriendService::class.java)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/remote/request/RequestChangePwdDto.kt b/app/src/main/java/com/sopt/now/data/dto/request/RequestChangePwdDto.kt
similarity index 90%
rename from app/src/main/java/com/sopt/now/remote/request/RequestChangePwdDto.kt
rename to app/src/main/java/com/sopt/now/data/dto/request/RequestChangePwdDto.kt
index d6f6914..0892694 100644
--- a/app/src/main/java/com/sopt/now/remote/request/RequestChangePwdDto.kt
+++ b/app/src/main/java/com/sopt/now/data/dto/request/RequestChangePwdDto.kt
@@ -1,4 +1,4 @@
-package com.sopt.now.remote.request
+package com.sopt.now.data.dto.request
 
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
diff --git a/app/src/main/java/com/sopt/now/remote/request/RequestLoginDto.kt b/app/src/main/java/com/sopt/now/data/dto/request/RequestLoginDto.kt
similarity index 86%
rename from app/src/main/java/com/sopt/now/remote/request/RequestLoginDto.kt
rename to app/src/main/java/com/sopt/now/data/dto/request/RequestLoginDto.kt
index 05e8c0f..696d54b 100644
--- a/app/src/main/java/com/sopt/now/remote/request/RequestLoginDto.kt
+++ b/app/src/main/java/com/sopt/now/data/dto/request/RequestLoginDto.kt
@@ -1,4 +1,4 @@
-package com.sopt.now.remote.request
+package com.sopt.now.data.dto.request
 
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
diff --git a/app/src/main/java/com/sopt/now/remote/request/RequestSignUpDto.kt b/app/src/main/java/com/sopt/now/data/dto/request/RequestSignUpDto.kt
similarity index 90%
rename from app/src/main/java/com/sopt/now/remote/request/RequestSignUpDto.kt
rename to app/src/main/java/com/sopt/now/data/dto/request/RequestSignUpDto.kt
index 7106e3e..ff95896 100644
--- a/app/src/main/java/com/sopt/now/remote/request/RequestSignUpDto.kt
+++ b/app/src/main/java/com/sopt/now/data/dto/request/RequestSignUpDto.kt
@@ -1,4 +1,4 @@
-package com.sopt.now.remote.request
+package com.sopt.now.data.dto.request
 
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
diff --git a/app/src/main/java/com/sopt/now/remote/response/ResponseChangePwdDto.kt b/app/src/main/java/com/sopt/now/data/dto/response/ResponseChangePwdDto.kt
similarity index 85%
rename from app/src/main/java/com/sopt/now/remote/response/ResponseChangePwdDto.kt
rename to app/src/main/java/com/sopt/now/data/dto/response/ResponseChangePwdDto.kt
index 92c756a..e5febda 100644
--- a/app/src/main/java/com/sopt/now/remote/response/ResponseChangePwdDto.kt
+++ b/app/src/main/java/com/sopt/now/data/dto/response/ResponseChangePwdDto.kt
@@ -1,4 +1,4 @@
-package com.sopt.now.remote.response
+package com.sopt.now.data.dto.response
 
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
diff --git a/app/src/main/java/com/sopt/now/remote/response/ResponseFriendsDto.kt b/app/src/main/java/com/sopt/now/data/dto/response/ResponseFriendsDto.kt
similarity index 58%
rename from app/src/main/java/com/sopt/now/remote/response/ResponseFriendsDto.kt
rename to app/src/main/java/com/sopt/now/data/dto/response/ResponseFriendsDto.kt
index 2d8a3b0..45efc90 100644
--- a/app/src/main/java/com/sopt/now/remote/response/ResponseFriendsDto.kt
+++ b/app/src/main/java/com/sopt/now/data/dto/response/ResponseFriendsDto.kt
@@ -1,5 +1,6 @@
-package com.sopt.now.remote.response
+package com.sopt.now.data.dto.response
 
+import com.sopt.now.domain.entity.FriendEntity
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 
@@ -14,24 +15,10 @@ data class ResponseFriendsDto(
     @SerialName("total_pages")
     val totalPages: Int,
     @SerialName("data")
-    val `data`: List<Data>,
+    val `data`: List<FriendEntity>,
     @SerialName("support")
     val support: Support
 ) {
-    @Serializable
-    data class Data(
-        @SerialName("id")
-        val id: Int,
-        @SerialName("email")
-        val email: String,
-        @SerialName("first_name")
-        val firstName: String,
-        @SerialName("last_name")
-        val lastName: String,
-        @SerialName("avatar")
-        val avatar: String
-    )
-
     @Serializable
     data class Support(
         @SerialName("url")
diff --git a/app/src/main/java/com/sopt/now/remote/response/ResponseLoginDto.kt b/app/src/main/java/com/sopt/now/data/dto/response/ResponseLoginDto.kt
similarity index 85%
rename from app/src/main/java/com/sopt/now/remote/response/ResponseLoginDto.kt
rename to app/src/main/java/com/sopt/now/data/dto/response/ResponseLoginDto.kt
index 7098a2d..6c6e79f 100644
--- a/app/src/main/java/com/sopt/now/remote/response/ResponseLoginDto.kt
+++ b/app/src/main/java/com/sopt/now/data/dto/response/ResponseLoginDto.kt
@@ -1,4 +1,4 @@
-package com.sopt.now.remote.response
+package com.sopt.now.data.dto.response
 
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
diff --git a/app/src/main/java/com/sopt/now/remote/response/ResponseSignUpDto.kt b/app/src/main/java/com/sopt/now/data/dto/response/ResponseSignUpDto.kt
similarity index 85%
rename from app/src/main/java/com/sopt/now/remote/response/ResponseSignUpDto.kt
rename to app/src/main/java/com/sopt/now/data/dto/response/ResponseSignUpDto.kt
index 7a35329..9220331 100644
--- a/app/src/main/java/com/sopt/now/remote/response/ResponseSignUpDto.kt
+++ b/app/src/main/java/com/sopt/now/data/dto/response/ResponseSignUpDto.kt
@@ -1,4 +1,4 @@
-package com.sopt.now.remote.response
+package com.sopt.now.data.dto.response
 
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
diff --git a/app/src/main/java/com/sopt/now/remote/response/ResponseUserInfoDto.kt b/app/src/main/java/com/sopt/now/data/dto/response/ResponseUserInfoDto.kt
similarity index 76%
rename from app/src/main/java/com/sopt/now/remote/response/ResponseUserInfoDto.kt
rename to app/src/main/java/com/sopt/now/data/dto/response/ResponseUserInfoDto.kt
index 069ab79..945a87e 100644
--- a/app/src/main/java/com/sopt/now/remote/response/ResponseUserInfoDto.kt
+++ b/app/src/main/java/com/sopt/now/data/dto/response/ResponseUserInfoDto.kt
@@ -1,6 +1,6 @@
-package com.sopt.now.remote.response
+package com.sopt.now.data.dto.response
 
-import com.sopt.now.util.user.User
+import com.sopt.now.presentation.home.User
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 
diff --git a/app/src/main/java/com/sopt/now/data/repositoryImpl/AuthRepositoryImpl.kt b/app/src/main/java/com/sopt/now/data/repositoryImpl/AuthRepositoryImpl.kt
new file mode 100644
index 0000000..12a3ac6
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/repositoryImpl/AuthRepositoryImpl.kt
@@ -0,0 +1,24 @@
+package com.sopt.now.data.repositoryImpl
+
+import com.sopt.now.data.datasource.AuthDataSource
+import com.sopt.now.data.dto.request.RequestLoginDto
+import com.sopt.now.data.dto.request.RequestSignUpDto
+import com.sopt.now.data.dto.response.ResponseLoginDto
+import com.sopt.now.data.dto.response.ResponseSignUpDto
+import com.sopt.now.domain.repository.AuthRepository
+import retrofit2.Response
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class AuthRepositoryImpl @Inject constructor(
+    private val authDataSource: AuthDataSource
+) : AuthRepository {
+    override suspend fun signUp(request: RequestSignUpDto): Response<ResponseSignUpDto> {
+        return authDataSource.signUp(request)
+    }
+
+    override suspend fun login(request: RequestLoginDto): Response<ResponseLoginDto> {
+        return authDataSource.login(request)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/data/repositoryImpl/FriendRepositoryImpl.kt b/app/src/main/java/com/sopt/now/data/repositoryImpl/FriendRepositoryImpl.kt
new file mode 100644
index 0000000..188d121
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/repositoryImpl/FriendRepositoryImpl.kt
@@ -0,0 +1,17 @@
+package com.sopt.now.data.repositoryImpl
+
+import com.sopt.now.data.datasource.FriendDataSource
+import com.sopt.now.data.dto.response.ResponseFriendsDto
+import com.sopt.now.domain.repository.FriendRepository
+import retrofit2.Response
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class FriendRepositoryImpl @Inject constructor(
+    private val friendDataSource: FriendDataSource
+) : FriendRepository {
+    override suspend fun getFriends(page: Int): Response<ResponseFriendsDto> {
+        return friendDataSource.getFriends(page)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/data/repositoryImpl/UserRepositoryImpl.kt b/app/src/main/java/com/sopt/now/data/repositoryImpl/UserRepositoryImpl.kt
new file mode 100644
index 0000000..e6e8079
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/repositoryImpl/UserRepositoryImpl.kt
@@ -0,0 +1,26 @@
+package com.sopt.now.data.repositoryImpl
+
+import com.sopt.now.data.datasource.UserDataSource
+import com.sopt.now.data.dto.request.RequestChangePwdDto
+import com.sopt.now.data.dto.response.ResponseChangePwdDto
+import com.sopt.now.data.dto.response.ResponseUserInfoDto
+import com.sopt.now.domain.repository.UserRepository
+import retrofit2.Response
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class UserRepositoryImpl @Inject constructor(
+    private val userDataSource: UserDataSource
+) : UserRepository {
+    override suspend fun getUserInfo(userId: Int): Response<ResponseUserInfoDto> {
+        return userDataSource.getUserInfo(userId)
+    }
+
+    override suspend fun changeUserPwd(
+        userId: Int,
+        request: RequestChangePwdDto
+    ): Response<ResponseChangePwdDto> {
+        return userDataSource.changeUserPwd(userId, request)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/remote/service/AuthService.kt b/app/src/main/java/com/sopt/now/data/service/AuthService.kt
similarity index 57%
rename from app/src/main/java/com/sopt/now/remote/service/AuthService.kt
rename to app/src/main/java/com/sopt/now/data/service/AuthService.kt
index 97e78d7..f8426b1 100644
--- a/app/src/main/java/com/sopt/now/remote/service/AuthService.kt
+++ b/app/src/main/java/com/sopt/now/data/service/AuthService.kt
@@ -1,10 +1,9 @@
-package com.sopt.now.remote.service
+package com.sopt.now.data.service
 
-import com.sopt.now.remote.request.RequestLoginDto
-import com.sopt.now.remote.request.RequestSignUpDto
-import com.sopt.now.remote.response.ResponseLoginDto
-import com.sopt.now.remote.response.ResponseSignUpDto
-import retrofit2.Call
+import com.sopt.now.data.dto.request.RequestLoginDto
+import com.sopt.now.data.dto.request.RequestSignUpDto
+import com.sopt.now.data.dto.response.ResponseLoginDto
+import com.sopt.now.data.dto.response.ResponseSignUpDto
 import retrofit2.Response
 import retrofit2.http.Body
 import retrofit2.http.POST
diff --git a/app/src/main/java/com/sopt/now/remote/service/FriendService.kt b/app/src/main/java/com/sopt/now/data/service/FriendService.kt
similarity index 73%
rename from app/src/main/java/com/sopt/now/remote/service/FriendService.kt
rename to app/src/main/java/com/sopt/now/data/service/FriendService.kt
index b0d07fa..f960634 100644
--- a/app/src/main/java/com/sopt/now/remote/service/FriendService.kt
+++ b/app/src/main/java/com/sopt/now/data/service/FriendService.kt
@@ -1,6 +1,6 @@
-package com.sopt.now.remote.service
+package com.sopt.now.data.service
 
-import com.sopt.now.remote.response.ResponseFriendsDto
+import com.sopt.now.data.dto.response.ResponseFriendsDto
 import retrofit2.Call
 import retrofit2.Response
 import retrofit2.http.GET
diff --git a/app/src/main/java/com/sopt/now/remote/service/UserService.kt b/app/src/main/java/com/sopt/now/data/service/UserService.kt
similarity index 70%
rename from app/src/main/java/com/sopt/now/remote/service/UserService.kt
rename to app/src/main/java/com/sopt/now/data/service/UserService.kt
index 655cde3..e9abb70 100644
--- a/app/src/main/java/com/sopt/now/remote/service/UserService.kt
+++ b/app/src/main/java/com/sopt/now/data/service/UserService.kt
@@ -1,8 +1,8 @@
-package com.sopt.now.remote.service
+package com.sopt.now.data.service
 
-import com.sopt.now.remote.request.RequestChangePwdDto
-import com.sopt.now.remote.response.ResponseChangePwdDto
-import com.sopt.now.remote.response.ResponseUserInfoDto
+import com.sopt.now.data.dto.request.RequestChangePwdDto
+import com.sopt.now.data.dto.response.ResponseChangePwdDto
+import com.sopt.now.data.dto.response.ResponseUserInfoDto
 import retrofit2.Call
 import retrofit2.Response
 import retrofit2.http.Body
diff --git a/app/src/main/java/com/sopt/now/domain/entity/FriendEntity.kt b/app/src/main/java/com/sopt/now/domain/entity/FriendEntity.kt
new file mode 100644
index 0000000..870ef57
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/domain/entity/FriendEntity.kt
@@ -0,0 +1,18 @@
+package com.sopt.now.domain.entity
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class FriendEntity(
+    @SerialName("id")
+    val id: Int,
+    @SerialName("email")
+    val email: String,
+    @SerialName("first_name")
+    val firstName: String,
+    @SerialName("last_name")
+    val lastName: String,
+    @SerialName("avatar")
+    val avatar: String
+)
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/domain/repository/AuthRepository.kt b/app/src/main/java/com/sopt/now/domain/repository/AuthRepository.kt
new file mode 100644
index 0000000..2556fa2
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/domain/repository/AuthRepository.kt
@@ -0,0 +1,16 @@
+package com.sopt.now.domain.repository
+
+import com.sopt.now.data.dto.request.RequestLoginDto
+import com.sopt.now.data.dto.request.RequestSignUpDto
+import com.sopt.now.data.dto.response.ResponseLoginDto
+import com.sopt.now.data.dto.response.ResponseSignUpDto
+import com.sopt.now.data.service.AuthService
+import retrofit2.Response
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+interface AuthRepository{
+    suspend fun signUp(request: RequestSignUpDto): Response<ResponseSignUpDto>
+    suspend fun login(request: RequestLoginDto): Response<ResponseLoginDto>
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/domain/repository/FriendRepository.kt b/app/src/main/java/com/sopt/now/domain/repository/FriendRepository.kt
new file mode 100644
index 0000000..c871123
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/domain/repository/FriendRepository.kt
@@ -0,0 +1,10 @@
+package com.sopt.now.domain.repository
+
+import com.sopt.now.data.dto.response.ResponseFriendsDto
+import retrofit2.Response
+import javax.inject.Singleton
+
+@Singleton
+interface FriendRepository {
+    suspend fun getFriends(page: Int): Response<ResponseFriendsDto>
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/domain/repository/UserRepository.kt b/app/src/main/java/com/sopt/now/domain/repository/UserRepository.kt
new file mode 100644
index 0000000..1d9f4f4
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/domain/repository/UserRepository.kt
@@ -0,0 +1,13 @@
+package com.sopt.now.domain.repository
+
+import com.sopt.now.data.dto.request.RequestChangePwdDto
+import com.sopt.now.data.dto.response.ResponseChangePwdDto
+import com.sopt.now.data.dto.response.ResponseUserInfoDto
+import retrofit2.Response
+import javax.inject.Singleton
+
+@Singleton
+interface UserRepository {
+    suspend fun getUserInfo(userId: Int): Response<ResponseUserInfoDto>
+    suspend fun changeUserPwd(userId: Int, request: RequestChangePwdDto) : Response<ResponseChangePwdDto>
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/ui/changePwd/ChangePwdActivity.kt b/app/src/main/java/com/sopt/now/presentation/changePwd/ChangePwdActivity.kt
similarity index 83%
rename from app/src/main/java/com/sopt/now/ui/changePwd/ChangePwdActivity.kt
rename to app/src/main/java/com/sopt/now/presentation/changePwd/ChangePwdActivity.kt
index 339c259..d5b38a5 100644
--- a/app/src/main/java/com/sopt/now/ui/changePwd/ChangePwdActivity.kt
+++ b/app/src/main/java/com/sopt/now/presentation/changePwd/ChangePwdActivity.kt
@@ -1,16 +1,19 @@
-package com.sopt.now.ui.changePwd
+package com.sopt.now.presentation.changePwd
 
 import android.os.Bundle
 import android.widget.Toast
 import androidx.activity.viewModels
 import androidx.appcompat.app.AppCompatActivity
+import com.sopt.now.data.dto.request.RequestChangePwdDto
 import com.sopt.now.databinding.ActivityChangePwdBinding
-import com.sopt.now.remote.request.RequestChangePwdDto
-import com.sopt.now.ui.main.MainViewModel.Companion.USER_INFO
+import com.sopt.now.presentation.main.MainViewModel.Companion.USER_INFO
+import dagger.hilt.android.AndroidEntryPoint
 
+@AndroidEntryPoint
 class ChangePwdActivity : AppCompatActivity() {
     private lateinit var binding: ActivityChangePwdBinding
-    private val viewModel by viewModels<ChangePwdViewModel>()
+    private val viewModel: ChangePwdViewModel by viewModels()
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         binding = ActivityChangePwdBinding.inflate(layoutInflater)
diff --git a/app/src/main/java/com/sopt/now/ui/changePwd/ChangePwdState.kt b/app/src/main/java/com/sopt/now/presentation/changePwd/ChangePwdState.kt
similarity index 65%
rename from app/src/main/java/com/sopt/now/ui/changePwd/ChangePwdState.kt
rename to app/src/main/java/com/sopt/now/presentation/changePwd/ChangePwdState.kt
index 80e48f9..67bee5f 100644
--- a/app/src/main/java/com/sopt/now/ui/changePwd/ChangePwdState.kt
+++ b/app/src/main/java/com/sopt/now/presentation/changePwd/ChangePwdState.kt
@@ -1,4 +1,4 @@
-package com.sopt.now.ui.changePwd
+package com.sopt.now.presentation.changePwd
 
 data class ChangePwdState(
     val isSuccess: Boolean,
diff --git a/app/src/main/java/com/sopt/now/ui/changePwd/ChangePwdViewModel.kt b/app/src/main/java/com/sopt/now/presentation/changePwd/ChangePwdViewModel.kt
similarity index 69%
rename from app/src/main/java/com/sopt/now/ui/changePwd/ChangePwdViewModel.kt
rename to app/src/main/java/com/sopt/now/presentation/changePwd/ChangePwdViewModel.kt
index a78c3ac..8bdbd31 100644
--- a/app/src/main/java/com/sopt/now/ui/changePwd/ChangePwdViewModel.kt
+++ b/app/src/main/java/com/sopt/now/presentation/changePwd/ChangePwdViewModel.kt
@@ -1,14 +1,19 @@
-package com.sopt.now.ui.changePwd
+package com.sopt.now.presentation.changePwd
 
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
-import com.sopt.now.remote.request.RequestChangePwdDto
-import com.sopt.now.ui.base.ServicePool.userService
+import com.sopt.now.data.dto.request.RequestChangePwdDto
+import com.sopt.now.domain.repository.UserRepository
+import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.launch
+import javax.inject.Inject
 
-class ChangePwdViewModel : ViewModel() {
+@HiltViewModel
+class ChangePwdViewModel @Inject constructor(
+    private val userRepository: UserRepository
+) : ViewModel() {
     private val _changePwdState = MutableLiveData<ChangePwdState>()
     val changePwdState: LiveData<ChangePwdState>
         get() = _changePwdState
@@ -16,7 +21,7 @@ class ChangePwdViewModel : ViewModel() {
     fun changePwd(userId: Int, request: RequestChangePwdDto) {
         viewModelScope.launch {
             runCatching {
-                userService.changeUserPwd(userId, request)
+                userRepository.changeUserPwd(userId, request)
             }.onSuccess {
                 if (it.code() in 200..299) {
                     _changePwdState.value = ChangePwdState(true, "비밀번호 변경 성공")
diff --git a/app/src/main/java/com/sopt/now/util/friend/Friend.kt b/app/src/main/java/com/sopt/now/presentation/home/Friend.kt
similarity index 73%
rename from app/src/main/java/com/sopt/now/util/friend/Friend.kt
rename to app/src/main/java/com/sopt/now/presentation/home/Friend.kt
index 4f794b2..647493b 100644
--- a/app/src/main/java/com/sopt/now/util/friend/Friend.kt
+++ b/app/src/main/java/com/sopt/now/presentation/home/Friend.kt
@@ -1,4 +1,4 @@
-package com.sopt.now.util.friend
+package com.sopt.now.presentation.home
 
 data class Friend(
     val profileImage: String,
diff --git a/app/src/main/java/com/sopt/now/util/friend/FriendAdapter.kt b/app/src/main/java/com/sopt/now/presentation/home/FriendAdapter.kt
similarity index 93%
rename from app/src/main/java/com/sopt/now/util/friend/FriendAdapter.kt
rename to app/src/main/java/com/sopt/now/presentation/home/FriendAdapter.kt
index 3996a75..29157d1 100644
--- a/app/src/main/java/com/sopt/now/util/friend/FriendAdapter.kt
+++ b/app/src/main/java/com/sopt/now/presentation/home/FriendAdapter.kt
@@ -1,12 +1,10 @@
-package com.sopt.now.util.friend
+package com.sopt.now.presentation.home
 
-import com.sopt.now.util.user.User
 import android.view.LayoutInflater
 import android.view.ViewGroup
 import androidx.recyclerview.widget.RecyclerView
 import com.sopt.now.databinding.ItemFriendBinding
 import com.sopt.now.databinding.ItemUserBinding
-import com.sopt.now.util.user.UserViewHolder
 
 class FriendAdapter() : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
     private var friendList: List<Friend> = emptyList()
diff --git a/app/src/main/java/com/sopt/now/util/friend/FriendViewHolder.kt b/app/src/main/java/com/sopt/now/presentation/home/FriendViewHolder.kt
similarity index 87%
rename from app/src/main/java/com/sopt/now/util/friend/FriendViewHolder.kt
rename to app/src/main/java/com/sopt/now/presentation/home/FriendViewHolder.kt
index cf3fe28..d4dfcad 100644
--- a/app/src/main/java/com/sopt/now/util/friend/FriendViewHolder.kt
+++ b/app/src/main/java/com/sopt/now/presentation/home/FriendViewHolder.kt
@@ -1,8 +1,7 @@
-package com.sopt.now.util.friend
+package com.sopt.now.presentation.home
 
 import androidx.recyclerview.widget.RecyclerView
 import com.bumptech.glide.Glide
-import com.bumptech.glide.load.resource.bitmap.CircleCrop
 import com.sopt.now.R
 import com.sopt.now.databinding.ItemFriendBinding
 
diff --git a/app/src/main/java/com/sopt/now/ui/home/HomeFragment.kt b/app/src/main/java/com/sopt/now/presentation/home/HomeFragment.kt
similarity index 82%
rename from app/src/main/java/com/sopt/now/ui/home/HomeFragment.kt
rename to app/src/main/java/com/sopt/now/presentation/home/HomeFragment.kt
index e6d47bd..9a12d6a 100644
--- a/app/src/main/java/com/sopt/now/ui/home/HomeFragment.kt
+++ b/app/src/main/java/com/sopt/now/presentation/home/HomeFragment.kt
@@ -1,18 +1,18 @@
-package com.sopt.now.ui.home
+package com.sopt.now.presentation.home
 
 import android.os.Bundle
 import android.view.View
 import androidx.fragment.app.activityViewModels
 import androidx.recyclerview.widget.GridLayoutManager
 import com.sopt.now.databinding.FragmentHomeBinding
-import com.sopt.now.ui.base.BindingFragment
-import com.sopt.now.ui.main.MainViewModel.Companion.LOGIN_INFO
-import com.sopt.now.util.friend.FriendAdapter
-import com.sopt.now.util.user.User
+import com.sopt.now.presentation.main.MainViewModel.Companion.LOGIN_INFO
+import com.sopt.now.util.BindingFragment
+import dagger.hilt.android.AndroidEntryPoint
 
+@AndroidEntryPoint
 class HomeFragment() : BindingFragment<FragmentHomeBinding>(FragmentHomeBinding::inflate) {
     private val friendAdapter by lazy { FriendAdapter() }
-    private val viewModel by activityViewModels<HomeViewModel>()
+    private val viewModel: HomeViewModel by activityViewModels()
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
diff --git a/app/src/main/java/com/sopt/now/ui/home/HomeViewModel.kt b/app/src/main/java/com/sopt/now/presentation/home/HomeViewModel.kt
similarity index 74%
rename from app/src/main/java/com/sopt/now/ui/home/HomeViewModel.kt
rename to app/src/main/java/com/sopt/now/presentation/home/HomeViewModel.kt
index ce05954..306583b 100644
--- a/app/src/main/java/com/sopt/now/ui/home/HomeViewModel.kt
+++ b/app/src/main/java/com/sopt/now/presentation/home/HomeViewModel.kt
@@ -1,18 +1,22 @@
-package com.sopt.now.ui.home
+package com.sopt.now.presentation.home
 
 import android.util.Log
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
-import com.sopt.now.ui.base.ServicePool.friendService
-import com.sopt.now.ui.base.ServicePool.userService
-import com.sopt.now.util.friend.Friend
-import com.sopt.now.util.user.User
+import com.sopt.now.domain.repository.FriendRepository
+import com.sopt.now.domain.repository.UserRepository
+import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.launch
 import retrofit2.HttpException
+import javax.inject.Inject
 
-class HomeViewModel : ViewModel() {
+@HiltViewModel
+class HomeViewModel @Inject constructor(
+    private val friendRepository: FriendRepository,
+    private val userRepository: UserRepository
+) : ViewModel() {
     private val _friends = MutableLiveData<List<Friend>>()
     val friends: LiveData<List<Friend>>
         get() = _friends
@@ -24,7 +28,7 @@ class HomeViewModel : ViewModel() {
     fun fetchFriends(page: Int) {
         viewModelScope.launch {
             runCatching {
-                friendService.getFriends(page)
+                friendRepository.getFriends(page)
             }.onSuccess {
                 val friends = it.body()?.data ?: emptyList()
                 _friends.postValue(friends.map { Friend(it.avatar, it.firstName, it.email) })
@@ -43,7 +47,7 @@ class HomeViewModel : ViewModel() {
     fun fetchUserInfo(userId: Int) {
         viewModelScope.launch {
             runCatching {
-                userService.getUserInfo(userId)
+                userRepository.getUserInfo(userId)
             }.onSuccess {
                 _userInfo.value = it.body()?.data
             }.onFailure {
diff --git a/app/src/main/java/com/sopt/now/util/user/User.kt b/app/src/main/java/com/sopt/now/presentation/home/User.kt
similarity index 80%
rename from app/src/main/java/com/sopt/now/util/user/User.kt
rename to app/src/main/java/com/sopt/now/presentation/home/User.kt
index c06f1eb..114083f 100644
--- a/app/src/main/java/com/sopt/now/util/user/User.kt
+++ b/app/src/main/java/com/sopt/now/presentation/home/User.kt
@@ -1,4 +1,4 @@
-package com.sopt.now.util.user
+package com.sopt.now.presentation.home
 
 import kotlinx.serialization.Serializable
 
diff --git a/app/src/main/java/com/sopt/now/util/user/UserViewHolder.kt b/app/src/main/java/com/sopt/now/presentation/home/UserViewHolder.kt
similarity index 90%
rename from app/src/main/java/com/sopt/now/util/user/UserViewHolder.kt
rename to app/src/main/java/com/sopt/now/presentation/home/UserViewHolder.kt
index 40b8562..fef69ab 100644
--- a/app/src/main/java/com/sopt/now/util/user/UserViewHolder.kt
+++ b/app/src/main/java/com/sopt/now/presentation/home/UserViewHolder.kt
@@ -1,4 +1,4 @@
-package com.sopt.now.util.user
+package com.sopt.now.presentation.home
 
 import androidx.recyclerview.widget.RecyclerView
 import com.sopt.now.databinding.ItemUserBinding
diff --git a/app/src/main/java/com/sopt/now/ui/login/LoginActivity.kt b/app/src/main/java/com/sopt/now/presentation/login/LoginActivity.kt
similarity index 88%
rename from app/src/main/java/com/sopt/now/ui/login/LoginActivity.kt
rename to app/src/main/java/com/sopt/now/presentation/login/LoginActivity.kt
index e04f3cf..9058603 100644
--- a/app/src/main/java/com/sopt/now/ui/login/LoginActivity.kt
+++ b/app/src/main/java/com/sopt/now/presentation/login/LoginActivity.kt
@@ -1,4 +1,4 @@
-package com.sopt.now.ui.login
+package com.sopt.now.presentation.login
 
 import android.content.Intent
 import android.os.Bundle
@@ -8,15 +8,17 @@ import androidx.activity.viewModels
 import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
 import com.sopt.now.R
+import com.sopt.now.data.dto.request.RequestLoginDto
 import com.sopt.now.databinding.ActivityLoginBinding
-import com.sopt.now.remote.request.RequestLoginDto
-import com.sopt.now.ui.main.MainActivity
-import com.sopt.now.ui.main.MainViewModel.Companion.LOGIN_INFO
-import com.sopt.now.ui.signUp.SignUpActivity
+import com.sopt.now.presentation.main.MainActivity
+import com.sopt.now.presentation.main.MainViewModel.Companion.LOGIN_INFO
+import com.sopt.now.presentation.signUp.SignUpActivity
+import dagger.hilt.android.AndroidEntryPoint
 
+@AndroidEntryPoint
 class LoginActivity : AppCompatActivity() {
     private lateinit var binding: ActivityLoginBinding
-    private val viewModel by viewModels<LoginViewModel>()
+    private val viewModel: LoginViewModel by viewModels()
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
diff --git a/app/src/main/java/com/sopt/now/ui/login/LoginState.kt b/app/src/main/java/com/sopt/now/presentation/login/LoginState.kt
similarity index 73%
rename from app/src/main/java/com/sopt/now/ui/login/LoginState.kt
rename to app/src/main/java/com/sopt/now/presentation/login/LoginState.kt
index 2341c47..bd7c309 100644
--- a/app/src/main/java/com/sopt/now/ui/login/LoginState.kt
+++ b/app/src/main/java/com/sopt/now/presentation/login/LoginState.kt
@@ -1,4 +1,4 @@
-package com.sopt.now.ui.login
+package com.sopt.now.presentation.login
 
 data class LoginState(
     val isSuccess: Boolean,
diff --git a/app/src/main/java/com/sopt/now/ui/login/LoginViewModel.kt b/app/src/main/java/com/sopt/now/presentation/login/LoginViewModel.kt
similarity index 70%
rename from app/src/main/java/com/sopt/now/ui/login/LoginViewModel.kt
rename to app/src/main/java/com/sopt/now/presentation/login/LoginViewModel.kt
index 4fe16e5..3cd0b56 100644
--- a/app/src/main/java/com/sopt/now/ui/login/LoginViewModel.kt
+++ b/app/src/main/java/com/sopt/now/presentation/login/LoginViewModel.kt
@@ -1,14 +1,19 @@
-package com.sopt.now.ui.login
+package com.sopt.now.presentation.login
 
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
-import com.sopt.now.remote.request.RequestLoginDto
-import com.sopt.now.ui.base.ServicePool.authService
+import com.sopt.now.data.dto.request.RequestLoginDto
+import com.sopt.now.domain.repository.AuthRepository
+import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.launch
+import javax.inject.Inject
 
-class LoginViewModel : ViewModel() {
+@HiltViewModel
+class LoginViewModel @Inject constructor(
+    private val authRepository: AuthRepository
+) : ViewModel() {
     private val _loginState = MutableLiveData<LoginState>()
     val loginState: LiveData<LoginState>
         get() = _loginState
@@ -16,7 +21,7 @@ class LoginViewModel : ViewModel() {
     fun login(request: RequestLoginDto) {
         viewModelScope.launch {
             runCatching {
-                authService.login(request)
+                authRepository.login(request)
             }.onSuccess {
                 if (it.code() in 200..299) {
                     val userId = it.headers()["location"]
diff --git a/app/src/main/java/com/sopt/now/ui/main/MainActivity.kt b/app/src/main/java/com/sopt/now/presentation/main/MainActivity.kt
similarity index 85%
rename from app/src/main/java/com/sopt/now/ui/main/MainActivity.kt
rename to app/src/main/java/com/sopt/now/presentation/main/MainActivity.kt
index 3ce6685..1d0a8d5 100644
--- a/app/src/main/java/com/sopt/now/ui/main/MainActivity.kt
+++ b/app/src/main/java/com/sopt/now/presentation/main/MainActivity.kt
@@ -1,15 +1,16 @@
-package com.sopt.now.ui.main
+package com.sopt.now.presentation.main
 
 import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
 import androidx.fragment.app.Fragment
 import com.sopt.now.R
 import com.sopt.now.databinding.ActivityMainBinding
-import com.sopt.now.ui.home.HomeFragment
-import com.sopt.now.ui.mypage.MyPageFragment
-import com.sopt.now.ui.search.SearchFragment
-
+import com.sopt.now.presentation.home.HomeFragment
+import com.sopt.now.presentation.mypage.MyPageFragment
+import com.sopt.now.presentation.search.SearchFragment
+import dagger.hilt.android.AndroidEntryPoint
 
+@AndroidEntryPoint
 class MainActivity : AppCompatActivity() {
     private lateinit var binding: ActivityMainBinding
     override fun onCreate(savedInstanceState: Bundle?) {
diff --git a/app/src/main/java/com/sopt/now/ui/main/MainViewModel.kt b/app/src/main/java/com/sopt/now/presentation/main/MainViewModel.kt
similarity index 82%
rename from app/src/main/java/com/sopt/now/ui/main/MainViewModel.kt
rename to app/src/main/java/com/sopt/now/presentation/main/MainViewModel.kt
index 00a3a15..020d9b5 100644
--- a/app/src/main/java/com/sopt/now/ui/main/MainViewModel.kt
+++ b/app/src/main/java/com/sopt/now/presentation/main/MainViewModel.kt
@@ -1,4 +1,4 @@
-package com.sopt.now.ui.main
+package com.sopt.now.presentation.main
 
 import androidx.lifecycle.ViewModel
 
diff --git a/app/src/main/java/com/sopt/now/ui/mypage/MyPageFragment.kt b/app/src/main/java/com/sopt/now/presentation/mypage/MyPageFragment.kt
similarity index 81%
rename from app/src/main/java/com/sopt/now/ui/mypage/MyPageFragment.kt
rename to app/src/main/java/com/sopt/now/presentation/mypage/MyPageFragment.kt
index 8e0c515..c37eaa0 100644
--- a/app/src/main/java/com/sopt/now/ui/mypage/MyPageFragment.kt
+++ b/app/src/main/java/com/sopt/now/presentation/mypage/MyPageFragment.kt
@@ -1,4 +1,4 @@
-package com.sopt.now.ui.mypage
+package com.sopt.now.presentation.mypage
 
 import android.content.Context.MODE_PRIVATE
 import android.content.Intent
@@ -8,15 +8,17 @@ import androidx.appcompat.app.AlertDialog
 import androidx.fragment.app.activityViewModels
 import com.sopt.now.R
 import com.sopt.now.databinding.FragmentMyPageBinding
-import com.sopt.now.ui.base.BindingFragment
-import com.sopt.now.ui.changePwd.ChangePwdActivity
-import com.sopt.now.ui.login.LoginActivity
-import com.sopt.now.ui.login.LoginActivity.Companion.PREF_KEY
-import com.sopt.now.ui.main.MainViewModel.Companion.LOGIN_INFO
-import com.sopt.now.ui.main.MainViewModel.Companion.USER_INFO
+import com.sopt.now.presentation.changePwd.ChangePwdActivity
+import com.sopt.now.presentation.login.LoginActivity
+import com.sopt.now.presentation.login.LoginActivity.Companion.PREF_KEY
+import com.sopt.now.presentation.main.MainViewModel.Companion.LOGIN_INFO
+import com.sopt.now.presentation.main.MainViewModel.Companion.USER_INFO
+import com.sopt.now.util.BindingFragment
+import dagger.hilt.android.AndroidEntryPoint
 
+@AndroidEntryPoint
 class MyPageFragment() : BindingFragment<FragmentMyPageBinding>(FragmentMyPageBinding::inflate) {
-    private val viewModel by activityViewModels<MyPageViewModel>()
+    private val viewModel: MyPageViewModel by activityViewModels()
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
diff --git a/app/src/main/java/com/sopt/now/ui/mypage/MyPageViewModel.kt b/app/src/main/java/com/sopt/now/presentation/mypage/MyPageViewModel.kt
similarity index 65%
rename from app/src/main/java/com/sopt/now/ui/mypage/MyPageViewModel.kt
rename to app/src/main/java/com/sopt/now/presentation/mypage/MyPageViewModel.kt
index 1ccf1ed..929766b 100644
--- a/app/src/main/java/com/sopt/now/ui/mypage/MyPageViewModel.kt
+++ b/app/src/main/java/com/sopt/now/presentation/mypage/MyPageViewModel.kt
@@ -1,15 +1,18 @@
-package com.sopt.now.ui.mypage
+package com.sopt.now.presentation.mypage
 
 import android.util.Log
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
-import com.sopt.now.remote.response.ResponseUserInfoDto
-import com.sopt.now.ui.base.ServicePool.userService
+import com.sopt.now.data.dto.response.ResponseUserInfoDto
+import com.sopt.now.domain.repository.UserRepository
 import kotlinx.coroutines.launch
+import javax.inject.Inject
 
-class MyPageViewModel : ViewModel() {
+class MyPageViewModel @Inject constructor(
+    private val userRepository: UserRepository
+) : ViewModel() {
     private val _userInfo = MutableLiveData<ResponseUserInfoDto>()
     val userInfo: LiveData<ResponseUserInfoDto>
         get() = _userInfo
@@ -17,7 +20,7 @@ class MyPageViewModel : ViewModel() {
     fun fetchUserInfo(userId: Int) {
         viewModelScope.launch {
             runCatching {
-                userService.getUserInfo(userId)
+                userRepository.getUserInfo(userId)
             }.onSuccess {
                 _userInfo.postValue(it.body())
             }.onFailure {
diff --git a/app/src/main/java/com/sopt/now/ui/search/SearchFragment.kt b/app/src/main/java/com/sopt/now/presentation/search/SearchFragment.kt
similarity index 65%
rename from app/src/main/java/com/sopt/now/ui/search/SearchFragment.kt
rename to app/src/main/java/com/sopt/now/presentation/search/SearchFragment.kt
index ad2a8ea..87ab701 100644
--- a/app/src/main/java/com/sopt/now/ui/search/SearchFragment.kt
+++ b/app/src/main/java/com/sopt/now/presentation/search/SearchFragment.kt
@@ -1,7 +1,7 @@
-package com.sopt.now.ui.search
+package com.sopt.now.presentation.search
 
 import com.sopt.now.databinding.FragmentSearchBinding
-import com.sopt.now.ui.base.BindingFragment
+import com.sopt.now.util.BindingFragment
 
 class SearchFragment : BindingFragment<FragmentSearchBinding>(FragmentSearchBinding::inflate) {
 
diff --git a/app/src/main/java/com/sopt/now/ui/signUp/SignUpActivity.kt b/app/src/main/java/com/sopt/now/presentation/signUp/SignUpActivity.kt
similarity index 86%
rename from app/src/main/java/com/sopt/now/ui/signUp/SignUpActivity.kt
rename to app/src/main/java/com/sopt/now/presentation/signUp/SignUpActivity.kt
index e79f3ad..fd319ad 100644
--- a/app/src/main/java/com/sopt/now/ui/signUp/SignUpActivity.kt
+++ b/app/src/main/java/com/sopt/now/presentation/signUp/SignUpActivity.kt
@@ -1,15 +1,18 @@
-package com.sopt.now.ui.signUp
+package com.sopt.now.presentation.signUp
 
 import android.os.Bundle
 import android.widget.Toast
 import androidx.activity.viewModels
 import androidx.appcompat.app.AppCompatActivity
+import com.sopt.now.data.dto.request.RequestSignUpDto
 import com.sopt.now.databinding.ActivitySignUpBinding
-import com.sopt.now.remote.request.RequestSignUpDto
+import dagger.hilt.android.AndroidEntryPoint
 
+@AndroidEntryPoint
 class SignUpActivity : AppCompatActivity() {
     private lateinit var binding: ActivitySignUpBinding
-    private val viewModel by viewModels<SignUpViewModel>()
+    private val viewModel: SignUpViewModel by viewModels()
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         binding = ActivitySignUpBinding.inflate(layoutInflater)
diff --git a/app/src/main/java/com/sopt/now/ui/signUp/SignUpState.kt b/app/src/main/java/com/sopt/now/presentation/signUp/SignUpState.kt
similarity index 65%
rename from app/src/main/java/com/sopt/now/ui/signUp/SignUpState.kt
rename to app/src/main/java/com/sopt/now/presentation/signUp/SignUpState.kt
index 30efd38..8fd04e2 100644
--- a/app/src/main/java/com/sopt/now/ui/signUp/SignUpState.kt
+++ b/app/src/main/java/com/sopt/now/presentation/signUp/SignUpState.kt
@@ -1,4 +1,4 @@
-package com.sopt.now.ui.signUp
+package com.sopt.now.presentation.signUp
 
 data class SignUpState(
     val isSuccess: Boolean,
diff --git a/app/src/main/java/com/sopt/now/ui/signUp/SignUpViewModel.kt b/app/src/main/java/com/sopt/now/presentation/signUp/SignUpViewModel.kt
similarity index 69%
rename from app/src/main/java/com/sopt/now/ui/signUp/SignUpViewModel.kt
rename to app/src/main/java/com/sopt/now/presentation/signUp/SignUpViewModel.kt
index bcc4b59..f882ebd 100644
--- a/app/src/main/java/com/sopt/now/ui/signUp/SignUpViewModel.kt
+++ b/app/src/main/java/com/sopt/now/presentation/signUp/SignUpViewModel.kt
@@ -1,14 +1,20 @@
-package com.sopt.now.ui.signUp
+package com.sopt.now.presentation.signUp
+
 
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
-import com.sopt.now.remote.request.RequestSignUpDto
-import com.sopt.now.ui.base.ServicePool.authService
+import com.sopt.now.data.dto.request.RequestSignUpDto
+import com.sopt.now.domain.repository.AuthRepository
+import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.launch
+import javax.inject.Inject
 
-class SignUpViewModel : ViewModel() {
+@HiltViewModel
+class SignUpViewModel @Inject constructor(
+    private val authRepository: AuthRepository
+) : ViewModel() {
     private val _signUpState = MutableLiveData<SignUpState>()
     val signUpState: LiveData<SignUpState>
         get() = _signUpState
@@ -16,7 +22,7 @@ class SignUpViewModel : ViewModel() {
     fun signUp(request: RequestSignUpDto) {
         viewModelScope.launch {
             runCatching {
-                authService.signUp(request)
+                authRepository.signUp(request)
             }.onSuccess {
                 if (it.code() in 200..299) {
                     _signUpState.value = SignUpState(true, "회원가입 성공")
diff --git a/app/src/main/java/com/sopt/now/ui/base/ApiFactory.kt b/app/src/main/java/com/sopt/now/ui/base/ApiFactory.kt
deleted file mode 100644
index cfdf390..0000000
--- a/app/src/main/java/com/sopt/now/ui/base/ApiFactory.kt
+++ /dev/null
@@ -1,30 +0,0 @@
-package com.sopt.now.ui.base
-
-import com.jakewharton.retrofit2.converter.kotlinx.serialization.asConverterFactory
-import com.sopt.now.BuildConfig.AUTH_BASE_URL
-import com.sopt.now.BuildConfig.FRIEND_BASE_URL
-import com.sopt.now.remote.service.AuthService
-import com.sopt.now.remote.service.FriendService
-import com.sopt.now.remote.service.UserService
-import kotlinx.serialization.json.Json
-import okhttp3.MediaType.Companion.toMediaType
-import retrofit2.Retrofit
-
-object ApiFactory {
-    private const val CONTENT_TYPE = "application/json"
-
-    fun retrofit(url: String): Retrofit {
-        return Retrofit.Builder()
-            .baseUrl(url)
-            .addConverterFactory(Json.asConverterFactory(CONTENT_TYPE.toMediaType()))
-            .build()
-    }
-
-    inline fun <reified T> create(url: String): T = retrofit(url).create(T::class.java)
-}
-
-object ServicePool {
-    val userService by lazy { ApiFactory.create<UserService>(AUTH_BASE_URL) }
-    val authService by lazy { ApiFactory.create<AuthService>(AUTH_BASE_URL) }
-    val friendService by lazy { ApiFactory.create<FriendService>(FRIEND_BASE_URL) }
-}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/util/BaseViewModelFactory.kt b/app/src/main/java/com/sopt/now/util/BaseViewModelFactory.kt
new file mode 100644
index 0000000..b14b1ca
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/util/BaseViewModelFactory.kt
@@ -0,0 +1,10 @@
+package com.sopt.now.util
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+
+class BaseViewModelFactory<T>(private val creator: () -> T) : ViewModelProvider.Factory {
+    override fun <V : ViewModel> create(modelClass: Class<V>): V {
+        return creator() as V
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/ui/base/BindingFragment.kt b/app/src/main/java/com/sopt/now/util/BindingFragment.kt
similarity index 96%
rename from app/src/main/java/com/sopt/now/ui/base/BindingFragment.kt
rename to app/src/main/java/com/sopt/now/util/BindingFragment.kt
index 49a65df..96a1a3a 100644
--- a/app/src/main/java/com/sopt/now/ui/base/BindingFragment.kt
+++ b/app/src/main/java/com/sopt/now/util/BindingFragment.kt
@@ -1,4 +1,4 @@
-package com.sopt.now.ui.base
+package com.sopt.now.util
 
 import android.os.Bundle
 import android.view.LayoutInflater
diff --git a/app/src/main/res/layout/activity_change_pwd.xml b/app/src/main/res/layout/activity_change_pwd.xml
index 8a1c32a..c7b8d3e 100644
--- a/app/src/main/res/layout/activity_change_pwd.xml
+++ b/app/src/main/res/layout/activity_change_pwd.xml
@@ -6,7 +6,7 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:padding="50dp"
-    tools:context=".ui.changePwd.ChangePwdActivity">
+    tools:context=".presentation.changePwd.ChangePwdActivity">
 
     <TextView
         android:id="@+id/tv_previous_pwd"
diff --git a/app/src/main/res/layout/activity_login.xml b/app/src/main/res/layout/activity_login.xml
index 9a0b662..9c1ebe7 100644
--- a/app/src/main/res/layout/activity_login.xml
+++ b/app/src/main/res/layout/activity_login.xml
@@ -7,7 +7,7 @@
     android:layout_height="match_parent"
     android:paddingHorizontal="30dp"
     android:paddingBottom="60dp"
-    tools:context=".ui.login.LoginActivity">
+    tools:context=".presentation.login.LoginActivity">
 
     <TextView
         android:id="@+id/welcome_text"
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 210bfc9..6250b3f 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -5,7 +5,7 @@
     android:id="@+id/main"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".ui.main.MainActivity">
+    tools:context=".presentation.main.MainActivity">
 
     <androidx.fragment.app.FragmentContainerView
         android:id="@+id/fcv_home"
diff --git a/app/src/main/res/layout/activity_sign_up.xml b/app/src/main/res/layout/activity_sign_up.xml
index 02a735f..21eb1bc 100644
--- a/app/src/main/res/layout/activity_sign_up.xml
+++ b/app/src/main/res/layout/activity_sign_up.xml
@@ -7,7 +7,7 @@
     android:layout_height="match_parent"
     android:paddingHorizontal="30dp"
     android:paddingVertical="50dp"
-    tools:context=".ui.signUp.SignUpActivity">
+    tools:context=".presentation.signUp.SignUpActivity">
 
     <TextView
         android:id="@+id/title_text"
diff --git a/app/src/main/res/layout/fragment_home.xml b/app/src/main/res/layout/fragment_home.xml
index 90e8da5..a7d4a6c 100644
--- a/app/src/main/res/layout/fragment_home.xml
+++ b/app/src/main/res/layout/fragment_home.xml
@@ -4,7 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".ui.home.HomeFragment">
+    tools:context=".presentation.home.HomeFragment">
 
     <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/rv_friends"
diff --git a/app/src/main/res/layout/fragment_my_page.xml b/app/src/main/res/layout/fragment_my_page.xml
index 1f7db6a..3b20e2d 100644
--- a/app/src/main/res/layout/fragment_my_page.xml
+++ b/app/src/main/res/layout/fragment_my_page.xml
@@ -8,7 +8,7 @@
     android:paddingHorizontal="50dp"
     android:paddingTop="100dp"
     android:paddingBottom="30dp"
-    tools:context=".ui.main.MainActivity">
+    tools:context=".presentation.main.MainActivity">
 
     <ImageView
         android:id="@+id/user_profile"
diff --git a/app/src/main/res/layout/fragment_search.xml b/app/src/main/res/layout/fragment_search.xml
index d000d01..aa28e99 100644
--- a/app/src/main/res/layout/fragment_search.xml
+++ b/app/src/main/res/layout/fragment_search.xml
@@ -3,7 +3,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".ui.search.SearchFragment">
+    tools:context=".presentation.search.SearchFragment">
 
     <!-- TODO: Update blank fragment layout -->
     <TextView
diff --git a/build.gradle b/build.gradle
index be6601c..5100030 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,4 +3,5 @@ plugins {
     id 'com.android.application' version '8.3.1' apply false
     id 'com.android.library' version '8.3.1' apply false
     id 'org.jetbrains.kotlin.android' version '1.9.0' apply false
+    id 'com.google.dagger.hilt.android' version '2.51' apply false
 }
\ No newline at end of file