diff --git a/data/src/main/java/com/foke/together/data/datasource/remote/RemoteDataSource.java b/data/src/main/java/com/foke/together/data/datasource/remote/RemoteDataSource.java
deleted file mode 100644
index 92422b3..0000000
--- a/data/src/main/java/com/foke/together/data/datasource/remote/RemoteDataSource.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package com.foke.together.data.datasource.remote;
-
-public class RemoteDataSource {
-}
diff --git a/data/src/main/java/com/foke/together/data/datasource/remote/WebClientApi.kt b/data/src/main/java/com/foke/together/data/datasource/remote/WebClientApi.kt
new file mode 100644
index 0000000..dfabc8f
--- /dev/null
+++ b/data/src/main/java/com/foke/together/data/datasource/remote/WebClientApi.kt
@@ -0,0 +1,50 @@
+package com.foke.together.data.datasource.remote
+
+import com.foke.together.data.datasource.remote.dto.AccountRegisterRequest
+import com.foke.together.data.datasource.remote.dto.AccountRegisterResponse
+import com.foke.together.data.datasource.remote.dto.AccountSigninResponse
+import com.foke.together.data.datasource.remote.dto.AccountWhoAmIResponse
+import com.foke.together.data.datasource.remote.dto.S3PresignedUrlResponse
+import okhttp3.RequestBody
+import okhttp3.ResponseBody
+import retrofit2.http.Body
+import retrofit2.http.GET
+import retrofit2.http.HeaderMap
+import retrofit2.http.POST
+import retrofit2.http.PUT
+import retrofit2.http.Query
+import retrofit2.http.Url
+
+interface WebClientApi {
+    // account
+    @POST("api/account/register")
+    suspend fun accountRegister(
+        @Body body: AccountRegisterRequest
+    ): Result<AccountRegisterResponse>
+
+    @GET("api/account/register")
+    suspend fun accountSignin(
+        @Query("email") email: String,
+        @Query("password") password: String
+    ): Result<AccountSigninResponse>
+
+    @GET("api/account/who-am-i")
+    suspend fun accountWhoAmI(
+        @HeaderMap headers: HashMap<String, String>,
+    ): Result<AccountWhoAmIResponse>
+
+    // s3
+    @GET("api/s3/presigned-url")
+    suspend fun s3PresignedUrl(
+        @HeaderMap headers: HashMap<String, String>,
+        @Query("key") key: String,
+        @Query("ContentLength") contentLength: String, // max: 20971520
+    ): Result<S3PresignedUrlResponse>
+
+    @PUT
+    suspend fun sendFileToCloud(
+        @Url url: String,
+        @HeaderMap headers: HashMap<String, String>,
+        @Body body: RequestBody
+    ): Result<ResponseBody>
+}
\ No newline at end of file
diff --git a/data/src/main/java/com/foke/together/data/datasource/remote/WebClientModule.kt b/data/src/main/java/com/foke/together/data/datasource/remote/WebClientModule.kt
new file mode 100644
index 0000000..6d16a31
--- /dev/null
+++ b/data/src/main/java/com/foke/together/data/datasource/remote/WebClientModule.kt
@@ -0,0 +1,50 @@
+package com.foke.together.data.datasource.remote
+
+import com.foke.together.util.AppPolicy
+import com.foke.together.util.retrofit.NetworkCallAdapterFactory
+import com.google.gson.GsonBuilder
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import okhttp3.OkHttpClient
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+import java.util.concurrent.TimeUnit
+import javax.inject.Named
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+object WebClientModule {
+
+    @Singleton
+    @Provides
+    @Named("okHttpWebClient")
+    fun provideOkHttpWebClient() = OkHttpClient.Builder()
+        .connectTimeout(AppPolicy.WEB_CONNECT_TIMEOUT, TimeUnit.SECONDS)
+        .readTimeout(AppPolicy.WEB_READ_TIMEOUT, TimeUnit.SECONDS)
+        .writeTimeout(AppPolicy.WEB_WRITE_TIMEOUT, TimeUnit.SECONDS)
+        .build()
+
+    @Singleton
+    @Provides
+    @Named("webClientRetrofit")
+    fun provideWebClientRetrofit(
+        @Named("okHttpWebClient") okHttpClient: OkHttpClient
+    ) = Retrofit.Builder()
+        .baseUrl(AppPolicy.WEB_SERVER_URL)
+        .addConverterFactory(GsonConverterFactory.create(
+            GsonBuilder().setLenient().create()
+        ))
+        .addCallAdapterFactory(NetworkCallAdapterFactory())
+        .client(okHttpClient)
+        .build()
+
+    @Singleton
+    @Provides
+    fun provideWebClientApi(
+        @Named("webClientRetrofit") retrofit: Retrofit
+    ): WebClientApi =
+        retrofit.create(WebClientApi::class.java)
+}
\ No newline at end of file
diff --git a/data/src/main/java/com/foke/together/data/datasource/remote/WebDataSource.kt b/data/src/main/java/com/foke/together/data/datasource/remote/WebDataSource.kt
new file mode 100644
index 0000000..d113a12
--- /dev/null
+++ b/data/src/main/java/com/foke/together/data/datasource/remote/WebDataSource.kt
@@ -0,0 +1,62 @@
+package com.foke.together.data.datasource.remote
+
+import com.foke.together.data.datasource.remote.dto.AccountRegisterRequest
+import com.foke.together.data.datasource.remote.dto.S3PresignedUrlResponse
+import com.foke.together.util.AppPolicy
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.RequestBody.Companion.asRequestBody
+import okhttp3.ResponseBody
+import java.io.File
+import javax.inject.Inject
+
+class WebDataSource @Inject constructor(
+    private val webClientApi: WebClientApi,
+) {
+    private val headers = HashMap<String, String>()
+
+    suspend fun accountWhoAmI() =
+        webClientApi.accountWhoAmI(headers)
+
+    suspend fun accountRegister(email: String, name: String, password: String) =
+        webClientApi.accountRegister(
+            AccountRegisterRequest(email, name, password)
+        )
+
+    suspend fun accountSignIn(email: String, password: String): Result<Unit> {
+        webClientApi.accountSignin(email, password)
+            .onSuccess {
+                setToken(it.token)
+                return Result.success(Unit)
+            }
+            .onFailure {
+                setToken("")
+                return Result.failure(it)
+            }
+        return Result.failure(Exception("unknown error"))
+    }
+
+    suspend fun s3PreSignedUrl(key: String, file: File): Result<S3PresignedUrlResponse> {
+        val contentLength = file.length()
+        if (contentLength > AppPolicy.WEB_FILE_MAX_CONTENT_LENGTH) {
+            return Result.failure(Exception("file size is over limit"))
+        }
+        return webClientApi.s3PresignedUrl(
+            headers = headers,
+            key = key,
+            contentLength = file.length().toString()
+        )
+    }
+
+    suspend fun sendFileToCloud(preSignedUrl: String, file: File): Result<ResponseBody> {
+        val requestBody = file.asRequestBody("application/octet-stream".toMediaType())
+        return webClientApi.sendFileToCloud(
+            url = preSignedUrl,
+            hashMapOf("Content-Type" to requestBody.contentType().toString()),
+            body = requestBody
+        )
+    }
+
+    private fun setToken(token: String) {
+        headers["token"] = token
+    }
+}
\ No newline at end of file
diff --git a/data/src/main/java/com/foke/together/data/datasource/remote/dto/AccountRegisterRequest.kt b/data/src/main/java/com/foke/together/data/datasource/remote/dto/AccountRegisterRequest.kt
new file mode 100644
index 0000000..3e287ed
--- /dev/null
+++ b/data/src/main/java/com/foke/together/data/datasource/remote/dto/AccountRegisterRequest.kt
@@ -0,0 +1,7 @@
+package com.foke.together.data.datasource.remote.dto
+
+data class AccountRegisterRequest(
+    val email: String,   // max 32
+    val name: String,    // max 32
+    val password: String // max 32
+)
\ No newline at end of file
diff --git a/data/src/main/java/com/foke/together/data/datasource/remote/dto/AccountRegisterResponse.kt b/data/src/main/java/com/foke/together/data/datasource/remote/dto/AccountRegisterResponse.kt
new file mode 100644
index 0000000..7edb528
--- /dev/null
+++ b/data/src/main/java/com/foke/together/data/datasource/remote/dto/AccountRegisterResponse.kt
@@ -0,0 +1,7 @@
+package com.foke.together.data.datasource.remote.dto
+
+import com.google.gson.annotations.SerializedName
+
+data class AccountRegisterResponse (
+    @SerializedName("token") val token: String
+)
\ No newline at end of file
diff --git a/data/src/main/java/com/foke/together/data/datasource/remote/dto/AccountSigninResponse.kt b/data/src/main/java/com/foke/together/data/datasource/remote/dto/AccountSigninResponse.kt
new file mode 100644
index 0000000..d51b773
--- /dev/null
+++ b/data/src/main/java/com/foke/together/data/datasource/remote/dto/AccountSigninResponse.kt
@@ -0,0 +1,7 @@
+package com.foke.together.data.datasource.remote.dto
+
+import com.google.gson.annotations.SerializedName
+
+data class AccountSigninResponse (
+    @SerializedName("token") val token: String
+)
\ No newline at end of file
diff --git a/data/src/main/java/com/foke/together/data/datasource/remote/dto/AccountWhoAmIResponse.kt b/data/src/main/java/com/foke/together/data/datasource/remote/dto/AccountWhoAmIResponse.kt
new file mode 100644
index 0000000..a6702d4
--- /dev/null
+++ b/data/src/main/java/com/foke/together/data/datasource/remote/dto/AccountWhoAmIResponse.kt
@@ -0,0 +1,9 @@
+package com.foke.together.data.datasource.remote.dto
+
+import com.google.gson.annotations.SerializedName
+
+data class AccountWhoAmIResponse (
+    @SerializedName("name") val name: String,
+    @SerializedName("email") val email: String,
+    @SerializedName("id") val id: String
+)
\ No newline at end of file
diff --git a/data/src/main/java/com/foke/together/data/datasource/remote/dto/S3PresignedUrlResponse.kt b/data/src/main/java/com/foke/together/data/datasource/remote/dto/S3PresignedUrlResponse.kt
new file mode 100644
index 0000000..4f23953
--- /dev/null
+++ b/data/src/main/java/com/foke/together/data/datasource/remote/dto/S3PresignedUrlResponse.kt
@@ -0,0 +1,7 @@
+package com.foke.together.data.datasource.remote.dto
+
+import com.google.gson.annotations.SerializedName
+
+data class S3PresignedUrlResponse (
+    @SerializedName("presignedUrl") val presignedUrl: String,
+)
\ No newline at end of file
diff --git a/data/src/main/java/com/foke/together/data/datasource/remote/interceptor/MockInterceptor.kt b/data/src/main/java/com/foke/together/data/datasource/remote/interceptor/MockInterceptor.kt
new file mode 100644
index 0000000..bd0929d
--- /dev/null
+++ b/data/src/main/java/com/foke/together/data/datasource/remote/interceptor/MockInterceptor.kt
@@ -0,0 +1,15 @@
+package com.foke.together.external.network.interceptor
+
+import okhttp3.Interceptor
+import okhttp3.Protocol
+import okhttp3.Response
+
+class MockInterceptor: Interceptor {
+    override fun intercept(chain: Interceptor.Chain): Response {
+        // TODO: make mock for test
+        return Response.Builder()
+            .request(chain.request())
+            .protocol(Protocol.HTTP_2)
+            .build()
+    }
+}
\ No newline at end of file
diff --git a/data/src/main/java/com/foke/together/data/repository/RemoteRepository.kt b/data/src/main/java/com/foke/together/data/repository/RemoteRepository.kt
new file mode 100644
index 0000000..be1021d
--- /dev/null
+++ b/data/src/main/java/com/foke/together/data/repository/RemoteRepository.kt
@@ -0,0 +1,66 @@
+package com.foke.together.data.repository
+
+import com.foke.together.data.datasource.remote.WebDataSource
+import com.foke.together.domain.interactor.entity.AccountData
+import com.foke.together.domain.output.RemoteRepositoryInterface
+import java.io.File
+import javax.inject.Inject
+
+class RemoteRepository @Inject constructor(
+    private val webDataSource: WebDataSource
+) : RemoteRepositoryInterface {
+    override suspend fun registerAccount(data: AccountData): Result<Unit> {
+        return data.name?.let { name ->
+            webDataSource.accountRegister(data.email, name, data.password)
+                .onSuccess {
+                    return Result.success(Unit)
+                }
+                .onFailure {
+                    return Result.failure(it)
+                }
+            Result.failure(Exception("unknown error"))
+        } ?: Result.failure(Exception("name is null"))
+    }
+
+    override suspend fun signIn(data: AccountData): Result<Unit> =
+        webDataSource.accountSignIn(data.email, data.password)
+
+    override suspend fun getAccountStatus(): Result<AccountData> {
+        webDataSource.accountWhoAmI()
+            .onSuccess {
+                return Result.success(
+                    AccountData(it.email, "", it.name)
+                )
+            }
+            .onFailure {
+                return Result.failure(it)
+            }
+        return Result.failure(Exception("unknown error"))
+    }
+
+    override suspend fun getUploadUrl(key: String, file: File): Result<String> {
+        webDataSource.s3PreSignedUrl(key, file)
+            .onSuccess {
+                return Result.success(it.presignedUrl)
+            }
+            .onFailure {
+                return Result.failure(it)
+            }
+        return Result.failure(Exception("unknown error"))
+    }
+
+    override suspend fun uploadFile(preSignedUrl: String, file: File): Result<Unit> {
+        webDataSource.sendFileToCloud(preSignedUrl, file)
+            .onSuccess {
+                return Result.success(Unit)
+            }
+            .onFailure {
+                return Result.failure(it)
+            }
+        return Result.failure(Exception("unknown error"))
+    }
+
+    companion object {
+        val TAG = RemoteRepository::class.java.simpleName
+    }
+}
\ No newline at end of file
diff --git a/data/src/main/java/com/foke/together/data/repository/di/RepositoryModule.kt b/data/src/main/java/com/foke/together/data/repository/di/RepositoryModule.kt
index 0d567a7..f26d07f 100644
--- a/data/src/main/java/com/foke/together/data/repository/di/RepositoryModule.kt
+++ b/data/src/main/java/com/foke/together/data/repository/di/RepositoryModule.kt
@@ -1,7 +1,9 @@
 package com.foke.together.data.repository.di
 
 import com.foke.together.data.repository.AppPreferencesRepository
+import com.foke.together.data.repository.RemoteRepository
 import com.foke.together.domain.output.AppPreferenceInterface
+import com.foke.together.domain.output.RemoteRepositoryInterface
 import dagger.Binds
 import dagger.Module
 import dagger.hilt.InstallIn
@@ -12,4 +14,7 @@ import dagger.hilt.android.components.ViewModelComponent
 abstract class RepositoryModule {
     @Binds
     abstract fun bindAppPreferenceRepository(appPreferenceRepository: AppPreferencesRepository): AppPreferenceInterface
+
+    @Binds
+    abstract fun bindRemoteRepository(remoteRepository: RemoteRepository): RemoteRepositoryInterface
 }
\ No newline at end of file
diff --git a/domain/src/main/java/com/foke/together/domain/interactor/entity/AccountData.kt b/domain/src/main/java/com/foke/together/domain/interactor/entity/AccountData.kt
new file mode 100644
index 0000000..75e24fa
--- /dev/null
+++ b/domain/src/main/java/com/foke/together/domain/interactor/entity/AccountData.kt
@@ -0,0 +1,7 @@
+package com.foke.together.domain.interactor.entity
+
+data class AccountData (
+    val email: String,
+    val password: String,
+    val name: String?
+)
\ No newline at end of file
diff --git a/domain/src/main/java/com/foke/together/domain/interactor/entity/PresignedFileData.kt b/domain/src/main/java/com/foke/together/domain/interactor/entity/PresignedFileData.kt
new file mode 100644
index 0000000..71346db
--- /dev/null
+++ b/domain/src/main/java/com/foke/together/domain/interactor/entity/PresignedFileData.kt
@@ -0,0 +1,7 @@
+package com.foke.together.domain.interactor.entity
+
+data class PreSignedFileData (
+    val key: String,
+    val contentLength: Long,
+    val preSignedUrl: String,
+)
\ No newline at end of file
diff --git a/domain/src/main/java/com/foke/together/domain/output/RemoteRepositoryInterface.kt b/domain/src/main/java/com/foke/together/domain/output/RemoteRepositoryInterface.kt
new file mode 100644
index 0000000..b63a8d7
--- /dev/null
+++ b/domain/src/main/java/com/foke/together/domain/output/RemoteRepositoryInterface.kt
@@ -0,0 +1,12 @@
+package com.foke.together.domain.output
+
+import com.foke.together.domain.interactor.entity.AccountData
+import java.io.File
+
+interface RemoteRepositoryInterface {
+    suspend fun registerAccount(data: AccountData): Result<Unit>
+    suspend fun signIn(data: AccountData): Result<Unit>
+    suspend fun getAccountStatus(): Result<AccountData>
+    suspend fun getUploadUrl(key: String, file: File): Result<String>
+    suspend fun uploadFile(preSignedUrl: String, file: File): Result<Unit>
+}
\ No newline at end of file
diff --git a/external/src/main/java/com/foke/together/external/network/ExternalCameraModule.kt b/external/src/main/java/com/foke/together/external/network/ExternalCameraModule.kt
index 5adbad7..2496eca 100644
--- a/external/src/main/java/com/foke/together/external/network/ExternalCameraModule.kt
+++ b/external/src/main/java/com/foke/together/external/network/ExternalCameraModule.kt
@@ -30,7 +30,8 @@ object ExternalCameraModule {
 
     @Singleton
     @Provides
-    fun provideOkHttpClient(
+    @Named("okHttpExternalCameraClient")
+    fun provideOkHttpExternalCameraClient(
         baseUrlInterceptor: BaseUrlInterceptor
     ) = OkHttpClient.Builder()
         .connectTimeout(AppPolicy.EXTERNAL_CAMERA_CONNECT_TIMEOUT, TimeUnit.SECONDS)
@@ -42,8 +43,9 @@ object ExternalCameraModule {
 
     @Singleton
     @Provides
+    @Named("externalCameraServerRetrofit")
     fun provideExternalCameraServerRetrofit(
-        okHttpClient: OkHttpClient,
+        @Named("okHttpExternalCameraClient") okHttpClient: OkHttpClient,
         @Named("cameraIPUrl") cameraIPUrl: String
     ) = Retrofit.Builder()
         .baseUrl(cameraIPUrl)
@@ -56,6 +58,8 @@ object ExternalCameraModule {
 
     @Singleton
     @Provides
-    fun provideApiService(retrofit: Retrofit): ExternalCameraApi =
+    fun provideExternalCameraApi(
+        @Named("externalCameraServerRetrofit") retrofit: Retrofit
+    ): ExternalCameraApi =
         retrofit.create(ExternalCameraApi::class.java)
 }
\ No newline at end of file
diff --git a/util/src/main/java/com/foke/together/util/AppPolicy.kt b/util/src/main/java/com/foke/together/util/AppPolicy.kt
index 794dd80..2a53c1f 100644
--- a/util/src/main/java/com/foke/together/util/AppPolicy.kt
+++ b/util/src/main/java/com/foke/together/util/AppPolicy.kt
@@ -6,6 +6,12 @@ object AppPolicy {
     const val DEFAULT_EXTERNAL_CAMERA_IP = "0.0.0.0"
 
     // network
+    const val WEB_SERVER_URL = "http://4cuts.store/"
+    const val WEB_CONNECT_TIMEOUT = 10L
+    const val WEB_READ_TIMEOUT = 10L
+    const val WEB_WRITE_TIMEOUT = 10L
+    const val WEB_FILE_MAX_CONTENT_LENGTH = 20971520
+
     const val EXTERNAL_CAMERA_DEFAULT_SERVER_URL = "http://0.0.0.0"
     const val EXTERNAL_CAMERA_CONNECT_TIMEOUT = 10L
     const val EXTERNAL_CAMERA_READ_TIMEOUT = 10L