diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index da20419f..887eda73 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -17,7 +17,7 @@ android {
         minSdk = 26
         targetSdk = 34
         versionCode = 1
-        versionName = "1.0"
+        versionName = "1.0.0"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables {
diff --git a/build.gradle.kts b/build.gradle.kts
index ee715b43..90493c2b 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -8,4 +8,5 @@ plugins {
     alias(libs.plugins.compose.compiler) apply false
     alias(libs.plugins.hilt.android) apply false
     alias(libs.plugins.kotlin.ksp) apply false
+    alias(libs.plugins.kotlin.parcelize) apply false
 }
\ No newline at end of file
diff --git a/core/data/src/main/java/com/goalpanzi/mission_mate/core/data/repository/ProfileRepositoryImpl.kt b/core/data/src/main/java/com/goalpanzi/mission_mate/core/data/repository/ProfileRepositoryImpl.kt
index e99e9d20..7cd51036 100644
--- a/core/data/src/main/java/com/goalpanzi/mission_mate/core/data/repository/ProfileRepositoryImpl.kt
+++ b/core/data/src/main/java/com/goalpanzi/mission_mate/core/data/repository/ProfileRepositoryImpl.kt
@@ -2,6 +2,7 @@ package com.goalpanzi.mission_mate.core.data.repository
 
 import com.goalpanzi.mission_mate.core.domain.repository.ProfileRepository
 import com.goalpanzi.mission_mate.core.network.service.ProfileService
+import com.luckyoct.core.model.CharacterType
 import com.luckyoct.core.model.base.NetworkResult
 import com.luckyoct.core.model.request.SaveProfileRequest
 import javax.inject.Inject
@@ -9,8 +10,8 @@ import javax.inject.Inject
 class ProfileRepositoryImpl @Inject constructor(
     private val profileService: ProfileService
 ): ProfileRepository {
-    override suspend fun saveProfile(nickname: String, index: Int): NetworkResult<Unit> = handleResult {
-        val request = SaveProfileRequest.createRequest(nickname, index)
+    override suspend fun saveProfile(nickname: String, type: CharacterType): NetworkResult<Unit> = handleResult {
+        val request = SaveProfileRequest.createRequest(nickname, type)
         profileService.saveProfile(request)
     }
 }
\ No newline at end of file
diff --git a/core/datastore/build.gradle.kts b/core/datastore/build.gradle.kts
index 497a8b02..85ef0949 100644
--- a/core/datastore/build.gradle.kts
+++ b/core/datastore/build.gradle.kts
@@ -45,4 +45,6 @@ dependencies {
 
     ksp(libs.hilt.compiler)
     implementation(libs.hilt.android)
+
+    implementation(project(":core:model"))
 }
\ No newline at end of file
diff --git a/core/datastore/src/main/java/com/goalpanzi/mission_mate/core/datastore/datasource/DefaultDataSource.kt b/core/datastore/src/main/java/com/goalpanzi/mission_mate/core/datastore/datasource/DefaultDataSource.kt
index e04d5ce1..e18f3cce 100644
--- a/core/datastore/src/main/java/com/goalpanzi/mission_mate/core/datastore/datasource/DefaultDataSource.kt
+++ b/core/datastore/src/main/java/com/goalpanzi/mission_mate/core/datastore/datasource/DefaultDataSource.kt
@@ -1,7 +1,10 @@
 package com.goalpanzi.mission_mate.core.datastore.datasource
 
+import com.luckyoct.core.model.UserProfile
 import kotlinx.coroutines.flow.Flow
 
 interface DefaultDataSource {
     fun clearUserData() : Flow<Unit>
+    fun setUserProfile(data: UserProfile) : Flow<Unit>
+    fun getUserProfile() : Flow<UserProfile?>
 }
\ No newline at end of file
diff --git a/core/datastore/src/main/java/com/goalpanzi/mission_mate/core/datastore/datasource/DefaultDataSourceImpl.kt b/core/datastore/src/main/java/com/goalpanzi/mission_mate/core/datastore/datasource/DefaultDataSourceImpl.kt
index 34e88b0c..fe8ce237 100644
--- a/core/datastore/src/main/java/com/goalpanzi/mission_mate/core/datastore/datasource/DefaultDataSourceImpl.kt
+++ b/core/datastore/src/main/java/com/goalpanzi/mission_mate/core/datastore/datasource/DefaultDataSourceImpl.kt
@@ -3,17 +3,45 @@ package com.goalpanzi.mission_mate.core.datastore.datasource
 import androidx.datastore.core.DataStore
 import androidx.datastore.preferences.core.Preferences
 import androidx.datastore.preferences.core.edit
+import androidx.datastore.preferences.core.stringPreferencesKey
+import com.luckyoct.core.model.CharacterType
+import com.luckyoct.core.model.UserProfile
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.flow.map
 import javax.inject.Inject
 
 class DefaultDataSourceImpl @Inject constructor(
     private val dataStore: DataStore<Preferences>
 ) : DefaultDataSource {
+
+    object PreferencesKey {
+        val USER_NICKNAME = stringPreferencesKey("USER_NICKNAME")
+        val USER_CHARACTER = stringPreferencesKey("USER_CHARACTER")
+    }
+
     override fun clearUserData(): Flow<Unit> = flow {
         dataStore.edit { preferences ->
             preferences.clear()
         }
         emit(Unit)
     }
+
+    override fun setUserProfile(data: UserProfile): Flow<Unit> = flow {
+        dataStore.edit { preferences ->
+            preferences[PreferencesKey.USER_NICKNAME] = data.nickname
+            preferences[PreferencesKey.USER_CHARACTER] = data.characterType.name.uppercase()
+        }
+        emit(Unit)
+    }
+
+    override fun getUserProfile(): Flow<UserProfile?> = dataStore.data.map { preferences ->
+        val nickname = preferences[PreferencesKey.USER_NICKNAME]
+        val character = preferences[PreferencesKey.USER_CHARACTER]
+        if (nickname != null && character != null) {
+            UserProfile(nickname, CharacterType.valueOf(character))
+        } else {
+            null
+        }
+    }
 }
\ No newline at end of file
diff --git a/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/repository/AuthRepository.kt b/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/repository/AuthRepository.kt
index a930d4c9..331a4210 100644
--- a/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/repository/AuthRepository.kt
+++ b/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/repository/AuthRepository.kt
@@ -1,7 +1,7 @@
 package com.goalpanzi.mission_mate.core.domain.repository
 
 import com.goalpanzi.mission_mate.core.network.ResultHandler
-import com.luckyoct.core.model.GoogleLogin
+import com.luckyoct.core.model.response.GoogleLogin
 import com.luckyoct.core.model.base.NetworkResult
 
 interface AuthRepository : ResultHandler {
diff --git a/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/repository/ProfileRepository.kt b/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/repository/ProfileRepository.kt
index 55400ac6..174add5e 100644
--- a/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/repository/ProfileRepository.kt
+++ b/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/repository/ProfileRepository.kt
@@ -1,8 +1,9 @@
 package com.goalpanzi.mission_mate.core.domain.repository
 
 import com.goalpanzi.mission_mate.core.network.ResultHandler
+import com.luckyoct.core.model.CharacterType
 import com.luckyoct.core.model.base.NetworkResult
 
 interface ProfileRepository: ResultHandler {
-    suspend fun saveProfile(nickname: String, index: Int): NetworkResult<Unit>
+    suspend fun saveProfile(nickname: String, type: CharacterType): NetworkResult<Unit>
 }
\ No newline at end of file
diff --git a/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/usecase/LoginUseCase.kt b/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/usecase/LoginUseCase.kt
index 244bbf71..c1e39216 100644
--- a/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/usecase/LoginUseCase.kt
+++ b/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/usecase/LoginUseCase.kt
@@ -1,15 +1,20 @@
 package com.goalpanzi.mission_mate.core.domain.usecase
 
 import com.goalpanzi.mission_mate.core.datastore.datasource.AuthDataSource
+import com.goalpanzi.mission_mate.core.datastore.datasource.DefaultDataSource
 import com.goalpanzi.mission_mate.core.domain.repository.AuthRepository
-import com.luckyoct.core.model.GoogleLogin
+import com.luckyoct.core.model.UserProfile
 import com.luckyoct.core.model.base.NetworkResult
+import com.luckyoct.core.model.response.GoogleLogin
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.runBlocking
 import javax.inject.Inject
 
 class LoginUseCase @Inject constructor(
     private val authRepository: AuthRepository,
-    private val authDataSource: AuthDataSource
+    private val authDataSource: AuthDataSource,
+    private val defaultDataSource: DefaultDataSource
 ) {
     suspend fun requestGoogleLogin(email: String): GoogleLogin? {
         return when (val response = authRepository.requestGoogleLogin(email)) {
@@ -17,10 +22,25 @@ class LoginUseCase @Inject constructor(
                 response.data.also {
                     authDataSource.setAccessToken(it.accessToken).first()
                     authDataSource.setRefreshToken(it.refreshToken).first()
+                    (it.nickname to it.characterType).let { (nickname, character) ->
+                        if (nickname != null && character != null) {
+                            defaultDataSource.setUserProfile(
+                                UserProfile(nickname, character)
+                            ).first()
+                        }
+                    }
                 }
             }
+
             is NetworkResult.Error, is NetworkResult.Exception -> null
         }
     }
 
+    fun isNewUser(): Boolean = runBlocking(Dispatchers.IO) {
+        authDataSource.getAccessToken().first() == null
+    }
+
+    fun getCachedUserData(): UserProfile? = runBlocking(Dispatchers.IO) {
+        defaultDataSource.getUserProfile().first()
+    }
 }
\ No newline at end of file
diff --git a/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/usecase/ProfileUseCase.kt b/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/usecase/ProfileUseCase.kt
index 89c23033..1e5791f2 100644
--- a/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/usecase/ProfileUseCase.kt
+++ b/core/domain/src/main/java/com/goalpanzi/mission_mate/core/domain/usecase/ProfileUseCase.kt
@@ -1,10 +1,21 @@
 package com.goalpanzi.mission_mate.core.domain.usecase
 
+import com.goalpanzi.mission_mate.core.datastore.datasource.DefaultDataSource
 import com.goalpanzi.mission_mate.core.domain.repository.ProfileRepository
+import com.luckyoct.core.model.CharacterType
+import com.luckyoct.core.model.UserProfile
+import com.luckyoct.core.model.base.NetworkResult
+import kotlinx.coroutines.flow.first
 import javax.inject.Inject
 
 class ProfileUseCase @Inject constructor(
-    private val profileRepository: ProfileRepository
+    private val profileRepository: ProfileRepository,
+    private val defaultDataSource: DefaultDataSource
 ) {
-    suspend fun saveProfile(nickname: String, index: Int) = profileRepository.saveProfile(nickname, index)
+    suspend fun saveProfile(nickname: String, type: CharacterType) = profileRepository.saveProfile(nickname, type).also {
+        if (it is NetworkResult.Success) {
+            defaultDataSource.setUserProfile(UserProfile(nickname, type)).first()
+        }
+    }
+    suspend fun getProfile(): UserProfile? = defaultDataSource.getUserProfile().first()
 }
\ No newline at end of file
diff --git a/core/model/build.gradle.kts b/core/model/build.gradle.kts
index f8036ed9..b39d9ec7 100644
--- a/core/model/build.gradle.kts
+++ b/core/model/build.gradle.kts
@@ -2,6 +2,7 @@ plugins {
     alias(libs.plugins.android.library)
     alias(libs.plugins.jetbrains.kotlin.android)
     alias(libs.plugins.kotlin.plugin.serialization)
+    alias(libs.plugins.kotlin.parcelize)
 }
 
 android {
diff --git a/core/model/src/main/java/com/luckyoct/core/model/CharacterType.kt b/core/model/src/main/java/com/luckyoct/core/model/CharacterType.kt
new file mode 100644
index 00000000..4dfbbb88
--- /dev/null
+++ b/core/model/src/main/java/com/luckyoct/core/model/CharacterType.kt
@@ -0,0 +1,24 @@
+package com.luckyoct.core.model
+
+import kotlinx.serialization.SerialName
+
+enum class CharacterType {
+
+    @SerialName("RABBIT")
+    RABBIT,
+
+    @SerialName("CAT")
+    CAT,
+
+    @SerialName("DOG")
+    DOG,
+
+    @SerialName("PANDA")
+    PANDA,
+
+    @SerialName("BEAR")
+    BEAR,
+
+    @SerialName("BIRD")
+    BIRD
+}
\ No newline at end of file
diff --git a/core/model/src/main/java/com/luckyoct/core/model/UserProfile.kt b/core/model/src/main/java/com/luckyoct/core/model/UserProfile.kt
new file mode 100644
index 00000000..d9a98f03
--- /dev/null
+++ b/core/model/src/main/java/com/luckyoct/core/model/UserProfile.kt
@@ -0,0 +1,6 @@
+package com.luckyoct.core.model
+
+data class UserProfile(
+    val nickname: String,
+    val characterType: CharacterType
+)
\ No newline at end of file
diff --git a/core/model/src/main/java/com/luckyoct/core/model/request/SaveProfileRequest.kt b/core/model/src/main/java/com/luckyoct/core/model/request/SaveProfileRequest.kt
index 5b961ede..f4c69505 100644
--- a/core/model/src/main/java/com/luckyoct/core/model/request/SaveProfileRequest.kt
+++ b/core/model/src/main/java/com/luckyoct/core/model/request/SaveProfileRequest.kt
@@ -1,20 +1,17 @@
 package com.luckyoct.core.model.request
 
+import com.luckyoct.core.model.CharacterType
 import kotlinx.serialization.Serializable
 
-enum class CharacterType {
-    RABBIT, CAT, DOG, PANDA, BEAR, BIRD
-}
-
 @Serializable
 data class SaveProfileRequest(
     val nickname: String,
     val characterType: String,
 ) {
     companion object {
-        fun createRequest(nickname: String, index: Int) = SaveProfileRequest(
+        fun createRequest(nickname: String, type: CharacterType) = SaveProfileRequest(
             nickname = nickname,
-            characterType = CharacterType.entries[index].name.uppercase()
+            characterType = type.name.uppercase()
         )
     }
 }
diff --git a/core/model/src/main/java/com/luckyoct/core/model/GoogleLogin.kt b/core/model/src/main/java/com/luckyoct/core/model/response/GoogleLogin.kt
similarity index 53%
rename from core/model/src/main/java/com/luckyoct/core/model/GoogleLogin.kt
rename to core/model/src/main/java/com/luckyoct/core/model/response/GoogleLogin.kt
index 6c31421d..a84d6628 100644
--- a/core/model/src/main/java/com/luckyoct/core/model/GoogleLogin.kt
+++ b/core/model/src/main/java/com/luckyoct/core/model/response/GoogleLogin.kt
@@ -1,10 +1,13 @@
-package com.luckyoct.core.model
+package com.luckyoct.core.model.response
 
+import com.luckyoct.core.model.CharacterType
 import kotlinx.serialization.Serializable
 
 @Serializable
 data class GoogleLogin(
     val accessToken: String,
     val refreshToken: String,
+    val nickname: String?,
+    val characterType: CharacterType?,
     val isProfileSet: Boolean
 )
diff --git a/core/model/src/main/java/com/luckyoct/core/model/response/MissionBoardMembersResponse.kt b/core/model/src/main/java/com/luckyoct/core/model/response/MissionBoardMembersResponse.kt
index 38c4ac36..4d7a2366 100644
--- a/core/model/src/main/java/com/luckyoct/core/model/response/MissionBoardMembersResponse.kt
+++ b/core/model/src/main/java/com/luckyoct/core/model/response/MissionBoardMembersResponse.kt
@@ -1,6 +1,6 @@
 package com.luckyoct.core.model.response
 
-import com.luckyoct.core.model.request.CharacterType
+import com.luckyoct.core.model.CharacterType
 import kotlinx.serialization.Serializable
 
 @Serializable
diff --git a/core/model/src/main/java/com/luckyoct/core/model/response/MissionVerificationResponse.kt b/core/model/src/main/java/com/luckyoct/core/model/response/MissionVerificationResponse.kt
index faf150ae..b1f849c3 100644
--- a/core/model/src/main/java/com/luckyoct/core/model/response/MissionVerificationResponse.kt
+++ b/core/model/src/main/java/com/luckyoct/core/model/response/MissionVerificationResponse.kt
@@ -1,6 +1,6 @@
 package com.luckyoct.core.model.response
 
-import com.luckyoct.core.model.request.CharacterType
+import com.luckyoct.core.model.CharacterType
 import kotlinx.serialization.Serializable
 
 @Serializable
diff --git a/core/network/src/main/java/com/goalpanzi/mission_mate/core/network/di/NetworkModule.kt b/core/network/src/main/java/com/goalpanzi/mission_mate/core/network/di/NetworkModule.kt
index de264cf2..63a96c09 100644
--- a/core/network/src/main/java/com/goalpanzi/mission_mate/core/network/di/NetworkModule.kt
+++ b/core/network/src/main/java/com/goalpanzi/mission_mate/core/network/di/NetworkModule.kt
@@ -7,18 +7,13 @@ 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.Converter
 import retrofit2.Retrofit
 import retrofit2.converter.kotlinx.serialization.asConverterFactory
-import java.security.KeyStore
 import javax.inject.Singleton
-import javax.net.ssl.SSLContext
-import javax.net.ssl.TrustManagerFactory
-import javax.net.ssl.X509TrustManager
 
 @Module
 @InstallIn(SingletonComponent::class)
@@ -36,16 +31,9 @@ internal object NetworkModule {
         httpLoggingInterceptor: HttpLoggingInterceptor,
         tokenInterceptor: TokenInterceptor
     ): OkHttpClient {
-        // TLS 대응
-        val trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm())
-        trustManagerFactory.init(null as KeyStore?)
-        val trustManager = trustManagerFactory.trustManagers[0] as X509TrustManager
-        val sslContext = SSLContext.getInstance("TLS")
-        sslContext.init(null, arrayOf(trustManager), java.security.SecureRandom())
 
         return OkHttpClient.Builder()
             .addInterceptor(tokenInterceptor)
-            .sslSocketFactory(sslContext.socketFactory, trustManager)
             .addInterceptor(httpLoggingInterceptor)
             .build()
     }
diff --git a/core/network/src/main/java/com/goalpanzi/mission_mate/core/network/service/LoginService.kt b/core/network/src/main/java/com/goalpanzi/mission_mate/core/network/service/LoginService.kt
index 81653286..9f9653a5 100644
--- a/core/network/src/main/java/com/goalpanzi/mission_mate/core/network/service/LoginService.kt
+++ b/core/network/src/main/java/com/goalpanzi/mission_mate/core/network/service/LoginService.kt
@@ -1,6 +1,6 @@
 package com.goalpanzi.mission_mate.core.network.service
 
-import com.luckyoct.core.model.GoogleLogin
+import com.luckyoct.core.model.response.GoogleLogin
 import com.luckyoct.core.model.request.GoogleLoginRequest
 import retrofit2.Response
 import retrofit2.http.Body
diff --git a/feature/board/src/main/java/com/goalpanzi/mission_mate/feature/board/model/Character.kt b/feature/board/src/main/java/com/goalpanzi/mission_mate/feature/board/model/Character.kt
index 2eb52c6f..0b159155 100644
--- a/feature/board/src/main/java/com/goalpanzi/mission_mate/feature/board/model/Character.kt
+++ b/feature/board/src/main/java/com/goalpanzi/mission_mate/feature/board/model/Character.kt
@@ -1,7 +1,7 @@
 package com.goalpanzi.mission_mate.feature.board.model
 
 import androidx.annotation.DrawableRes
-import com.luckyoct.core.model.request.CharacterType
+import com.luckyoct.core.model.CharacterType
 
 enum class Character(
     @DrawableRes val imageId: Int,
diff --git a/feature/main/build.gradle.kts b/feature/main/build.gradle.kts
index ef44c187..380bf2e6 100644
--- a/feature/main/build.gradle.kts
+++ b/feature/main/build.gradle.kts
@@ -69,6 +69,7 @@ dependencies {
     implementation(project(":core:designsystem"))
     implementation(project(":core:navigation"))
     implementation(project(":core:domain"))
+    implementation(project(":core:model"))
     implementation(project(":feature:login"))
     implementation(project(":feature:onboarding"))
     implementation(project(":feature:profile"))
diff --git a/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/MainActivity.kt b/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/MainActivity.kt
index 4740d8ec..fdc79fda 100644
--- a/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/MainActivity.kt
+++ b/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/MainActivity.kt
@@ -6,27 +6,42 @@ import androidx.activity.ComponentActivity
 import androidx.activity.SystemBarStyle
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
-import androidx.activity.viewModels
 import com.goalpanzi.mission_mate.core.designsystem.theme.MissionmateTheme
+import com.goalpanzi.mission_mate.core.domain.usecase.LoginUseCase
 import com.goalpanzi.mission_mate.core.main.component.MainNavigator
 import com.goalpanzi.mission_mate.core.main.component.rememberMainNavigator
+import com.goalpanzi.mission_mate.core.navigation.RouteModel
 import dagger.hilt.android.AndroidEntryPoint
+import javax.inject.Inject
 
 @AndroidEntryPoint
 class MainActivity : ComponentActivity() {
 
-    private val viewModel: MainViewModel by viewModels()
+    @Inject
+    lateinit var loginUseCase: LoginUseCase
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         enableEdgeToEdge(
             statusBarStyle = SystemBarStyle.light(Color.TRANSPARENT, Color.TRANSPARENT)
         )
+        val isNewUser = loginUseCase.isNewUser()
+        val user = loginUseCase.getCachedUserData()
+
         setContent {
             val navigator: MainNavigator = rememberMainNavigator()
             MissionmateTheme {
                 MainScreen(
                     navigator = navigator,
+                    startDestination = if (isNewUser) {
+                        RouteModel.Login
+                    } else {
+                        if (user == null) {
+                            RouteModel.Profile.Create
+                        } else {
+                            RouteModel.Onboarding
+                        }
+                    }
                 )
             }
         }
diff --git a/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/MainScreen.kt b/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/MainScreen.kt
index 3a5366ab..6eb85be5 100644
--- a/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/MainScreen.kt
+++ b/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/MainScreen.kt
@@ -6,19 +6,23 @@ import androidx.compose.ui.Modifier
 import com.goalpanzi.mission_mate.core.main.component.MainNavHost
 import com.goalpanzi.mission_mate.core.main.component.MainNavigator
 import com.goalpanzi.mission_mate.core.main.component.rememberMainNavigator
+import com.goalpanzi.mission_mate.core.navigation.RouteModel
 
 @Composable
 internal fun MainScreen(
     navigator: MainNavigator = rememberMainNavigator(),
+    startDestination: RouteModel
 ) {
     MainScreenContent(
-        navigator = navigator
+        navigator = navigator,
+        startDestination = startDestination
     )
 }
 
 @Composable
 private fun MainScreenContent(
     navigator: MainNavigator,
+    startDestination: RouteModel,
     modifier: Modifier = Modifier
 ) {
     Scaffold(
@@ -26,6 +30,7 @@ private fun MainScreenContent(
         content = { padding ->
             MainNavHost(
                 navigator = navigator,
+                startDestination = startDestination,
                 padding = padding
             )
         }
diff --git a/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/MainViewModel.kt b/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/MainViewModel.kt
deleted file mode 100644
index dd508655..00000000
--- a/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/MainViewModel.kt
+++ /dev/null
@@ -1,14 +0,0 @@
-package com.goalpanzi.mission_mate.core.main
-
-import androidx.lifecycle.ViewModel
-import dagger.hilt.android.lifecycle.HiltViewModel
-import javax.inject.Inject
-
-@HiltViewModel
-class MainViewModel @Inject constructor(
-
-): ViewModel() {
-
-    // TODO : flow to get isAuthorized
-    val isAuthorized = false
-}
\ No newline at end of file
diff --git a/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/component/MainNavHost.kt b/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/component/MainNavHost.kt
index 57f2f509..9f22a99f 100644
--- a/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/component/MainNavHost.kt
+++ b/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/component/MainNavHost.kt
@@ -8,7 +8,6 @@ import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.navigation.compose.NavHost
-import androidx.navigation.navOptions
 import com.goalpanzi.mission_mate.core.navigation.RouteModel
 import com.goalpanzi.mission_mate.feature.board.boardNavGraph
 import com.goalpanzi.mission_mate.feature.login.loginNavGraph
@@ -26,6 +25,7 @@ import com.luckyoct.feature.setting.navigation.settingNavGraph
 internal fun MainNavHost(
     modifier: Modifier = Modifier,
     navigator: MainNavigator,
+    startDestination: RouteModel,
     padding: PaddingValues
 ) {
     Box(
@@ -35,7 +35,7 @@ internal fun MainNavHost(
     ) {
         NavHost(
             navController = navigator.navController,
-            startDestination = navigator.startDestination
+            startDestination = startDestination
         ) {
             loginNavGraph(
                 onLoginSuccess = { if (it) navigator.navigationToOnboarding() else navigator.navigateToProfileCreate() }
@@ -76,7 +76,6 @@ internal fun MainNavHost(
             settingNavGraph(
                 onBackClick = { navigator.popBackStack() },
                 onClickProfileSetting = { navigator.navigateToProfileSetting() },
-                onClickInquiry = { navigator.navigationToInquiry() },
                 onClickServicePolicy = { navigator.navigationToServicePolicy() },
                 onClickPrivacyPolicy = { navigator.navigationToPrivacyPolicy() },
                 onClickLogout = { navigator.navigateToLogin() }
diff --git a/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/component/MainNavigator.kt b/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/component/MainNavigator.kt
index 416089f9..4900da02 100644
--- a/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/component/MainNavigator.kt
+++ b/feature/main/src/main/java/com/goalpanzi/mission_mate/core/main/component/MainNavigator.kt
@@ -62,10 +62,6 @@ class MainNavigator(
         navController.navigateToSetting()
     }
 
-    fun navigationToInquiry() {
-        navController.navigateToInquiry()
-    }
-
     fun navigationToServicePolicy() {
         navController.navigateToServicePolicy()
     }
diff --git a/feature/profile/src/main/java/com/luckyoct/feature/profile/ProfileNavigation.kt b/feature/profile/src/main/java/com/luckyoct/feature/profile/ProfileNavigation.kt
index 561c1ed3..0741d032 100644
--- a/feature/profile/src/main/java/com/luckyoct/feature/profile/ProfileNavigation.kt
+++ b/feature/profile/src/main/java/com/luckyoct/feature/profile/ProfileNavigation.kt
@@ -24,14 +24,14 @@ fun NavGraphBuilder.profileNavGraph(
     composable<RouteModel.Profile.Create> {
         ProfileRoute(
             profileSettingType = ProfileSettingType.CREATE,
-            onSaveSuccess = { onSaveSuccess() }
+            onSaveSuccess = onSaveSuccess
         )
     }
     composable<RouteModel.Profile.Setting> {
         ProfileRoute(
             profileSettingType = ProfileSettingType.SETTING,
-            onSaveSuccess = { onSaveSuccess() },
-            onBackClick = { onBackClick() }
+            onSaveSuccess = onBackClick,
+            onBackClick = onBackClick
         )
     }
 }
\ No newline at end of file
diff --git a/feature/profile/src/main/java/com/luckyoct/feature/profile/ProfileScreen.kt b/feature/profile/src/main/java/com/luckyoct/feature/profile/ProfileScreen.kt
index 3b33862e..2fb3c419 100644
--- a/feature/profile/src/main/java/com/luckyoct/feature/profile/ProfileScreen.kt
+++ b/feature/profile/src/main/java/com/luckyoct/feature/profile/ProfileScreen.kt
@@ -9,21 +9,24 @@ import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ColumnScope
 import androidx.compose.foundation.layout.PaddingValues
-import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.imePadding
+import androidx.compose.foundation.layout.navigationBarsPadding
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.requiredSize
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.statusBarsPadding
+import androidx.compose.foundation.layout.systemBarsPadding
 import androidx.compose.foundation.layout.wrapContentHeight
 import androidx.compose.foundation.lazy.LazyRow
 import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.foundation.rememberScrollState
-import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
@@ -34,6 +37,8 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.alpha
+import androidx.compose.ui.draw.paint
+import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
@@ -42,17 +47,18 @@ import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.lifecycle.viewmodel.compose.viewModel
+import com.goalpanzi.mission_mate.core.designsystem.component.MissionMateButtonType
 import com.goalpanzi.mission_mate.core.designsystem.component.MissionMateTextButton
 import com.goalpanzi.mission_mate.core.designsystem.component.MissionMateTextFieldGroup
 import com.goalpanzi.mission_mate.core.designsystem.theme.ColorGray1_FF404249
 import com.goalpanzi.mission_mate.core.designsystem.theme.ColorGray5_FFF5F6F9
-import com.goalpanzi.mission_mate.core.designsystem.theme.ColorPink_FFFFE4E4
 import com.goalpanzi.mission_mate.core.designsystem.theme.ColorWhite_FFFFFFFF
 import com.goalpanzi.mission_mate.core.designsystem.theme.MissionMateTypography
 import com.goalpanzi.mission_mate.core.designsystem.theme.component.MissionMateTopAppBar
 import com.goalpanzi.mission_mate.core.designsystem.theme.component.NavigationType
+import com.luckyoct.core.model.CharacterType
 import com.luckyoct.feature.profile.model.CharacterListItem
-import com.luckyoct.feature.profile.model.ProfileEvent
+import com.luckyoct.feature.profile.model.ProfileUiState
 import dagger.hilt.android.EntryPointAccessors
 import kotlinx.coroutines.flow.collectLatest
 
@@ -74,46 +80,51 @@ fun ProfileRoute(
     onBackClick: (() -> Unit)? = null
 ) {
     val viewModel = profileViewModel(profileSettingType = profileSettingType)
-    val characters = viewModel.characters.collectAsStateWithLifecycle()
+    val uiState by viewModel.uiState.collectAsStateWithLifecycle()
+    val isInvalidNickname by viewModel.isInvalidNickname.collectAsStateWithLifecycle()
 
     LaunchedEffect(true) {
-        viewModel.event.collectLatest {
-            when (it) {
-                ProfileEvent.Success -> onSaveSuccess()
-                else -> return@collectLatest
-            }
+        viewModel.isSaveSuccess.collectLatest {
+            if (it) onSaveSuccess()
         }
     }
 
-    ProfileScreen(
-        profileSettingType = profileSettingType,
-        characters = characters.value,
-        onclickCharacter = { viewModel.selectCharacter(it) },
-        onClickSave = { viewModel.saveProfile(it) },
-        onBackClick = { onBackClick?.invoke() }
-    )
+    Box(
+        modifier = Modifier
+            .fillMaxSize()
+            .background(color = ColorWhite_FFFFFFFF)
+            .systemBarsPadding()
+            .navigationBarsPadding()
+            .imePadding()
+    ) {
+        ProfileContent(
+            modifier = modifier,
+            uiState = uiState,
+            profileSettingType = profileSettingType,
+            onClickCharacter = { viewModel.selectCharacter(it) },
+            onClickSave = { viewModel.saveProfile(it) },
+            onBackClick = onBackClick,
+            isInvalidNickname = isInvalidNickname,
+            resetNicknameErrorState = { viewModel.resetNicknameErrorState() }
+        )
+    }
 }
 
 @Composable
-fun ProfileScreen(
+fun ProfileContent(
     modifier: Modifier = Modifier,
+    uiState: ProfileUiState,
     profileSettingType: ProfileSettingType,
-    characters: List<CharacterListItem>,
-    onclickCharacter: (CharacterListItem) -> Unit,
-    onClickSave: (String) -> Unit,
-    onBackClick: (() -> Unit)? = null
+    onClickCharacter: (CharacterListItem) -> Unit = {},
+    onClickSave: (String) -> Unit = {},
+    onBackClick: (() -> Unit)? = null,
+    isInvalidNickname: Boolean,
+    resetNicknameErrorState: () -> Unit
 ) {
-
-    var nicknameInput by remember { mutableStateOf("") }
-    val scrollState = rememberScrollState()
-    val regex = Regex("^[가-힣ㅏ-ㅣㄱ-ㅎa-zA-Z0-9]{1,6}$")
-
     Column(
         modifier = modifier
             .fillMaxSize()
             .background(color = ColorWhite_FFFFFFFF)
-            .imePadding()
-            .statusBarsPadding()
     ) {
         if (profileSettingType == ProfileSettingType.SETTING) {
             MissionMateTopAppBar(
@@ -122,74 +133,129 @@ fun ProfileScreen(
                 onNavigationClick = { onBackClick?.invoke() }
             )
         }
-        Column(
-            modifier = modifier
-                .padding(bottom = 18.dp)
-                .fillMaxWidth()
-                .weight(1f)
-                .verticalScroll(scrollState)
-        ) {
-            Text(
-                text = stringResource(id = when (profileSettingType) {
-                   ProfileSettingType.CREATE -> R.string.profile_create
-                    ProfileSettingType.SETTING -> R.string.profile_setting_title
-                }),
-                modifier = modifier
-                    .align(Alignment.CenterHorizontally)
-                    .padding(top = 48.dp),
-                style = MissionMateTypography.heading_sm_bold,
-                color = ColorGray1_FF404249
-            )
+        when (uiState) {
+            ProfileUiState.Loading -> {
+                ProfileLoading()
+            }
 
-            characters.find { it.isSelected }?.let {
-                Box(
-                    modifier = modifier
-                        .padding(top = 32.dp)
-                        .size(220.dp)
-                        .background(color = it.backgroundColor, shape = CircleShape)
-                        .align(Alignment.CenterHorizontally)
-                ) {
-                    CharacterLargeImage(imageResId = it.imageResId)
-                }
+            is ProfileUiState.Success -> {
+                ProfileScreen(
+                    modifier = modifier,
+                    profileSettingType = profileSettingType,
+                    initialNickname = uiState.nickname,
+                    characters = uiState.characterList,
+                    onClickCharacter = onClickCharacter,
+                    onClickSave = onClickSave,
+                    isInvalidNickname = isInvalidNickname,
+                    resetNicknameErrorState = resetNicknameErrorState
+                )
             }
-            CharacterRow(
-                characters = characters,
-                onClick = onclickCharacter
-            )
+        }
+    }
+}
 
-            MissionMateTextFieldGroup(
+@Composable
+fun ColumnScope.ProfileScreen(
+    modifier: Modifier = Modifier,
+    initialNickname: String,
+    profileSettingType: ProfileSettingType,
+    characters: List<CharacterListItem>,
+    onClickCharacter: (CharacterListItem) -> Unit,
+    onClickSave: (String) -> Unit,
+    isInvalidNickname: Boolean,
+    resetNicknameErrorState: () -> Unit = {}
+) {
+    var nicknameInput by remember { mutableStateOf(initialNickname) }
+    val scrollState = rememberScrollState()
+    val regex = Regex("^[가-힣ㅏ-ㅣㄱ-ㅎa-zA-Z0-9]{1,6}$")
+
+    Column(
+        modifier = modifier
+            .padding(bottom = 18.dp)
+            .weight(1f)
+            .fillMaxWidth()
+            .verticalScroll(scrollState)
+            .imePadding()
+    ) {
+        Text(
+            text = stringResource(
+                id = when (profileSettingType) {
+                    ProfileSettingType.CREATE -> R.string.profile_create
+                    ProfileSettingType.SETTING -> R.string.profile_setting_title
+                }
+            ),
+            modifier = modifier
+                .align(Alignment.CenterHorizontally)
+                .padding(top = 48.dp),
+            style = MissionMateTypography.heading_sm_bold,
+            color = ColorGray1_FF404249
+        )
+
+        characters.find { it.isSelected }?.let {
+            Box(
                 modifier = modifier
-                    .padding(top = 38.dp, start = 24.dp, end = 24.dp)
-                    .fillMaxWidth()
-                    .wrapContentHeight(),
-                text = nicknameInput,
-                onValueChange = { if (regex.matches(it) || it.isEmpty()) nicknameInput = it },
-                hintId = R.string.nickname_hint,
-                guidanceId = R.string.nickname_input_guide
-            )
+                    .padding(top = 32.dp)
+                    .size(220.dp)
+                    .align(Alignment.CenterHorizontally)
+            ) {
+                CharacterLargeImage(
+                    imageResId = it.imageResId,
+                    backgroundResId = it.backgroundResId
+                )
+            }
         }
+        CharacterRow(
+            characters = characters,
+            onClick = onClickCharacter
+        )
 
-        MissionMateTextButton(
+        MissionMateTextFieldGroup(
             modifier = modifier
-                .padding(bottom = 36.dp, start = 24.dp, end = 24.dp)
-                .fillMaxWidth(),
-            textId = R.string.save,
-            onClick = { onClickSave(nicknameInput) }
+                .padding(top = 38.dp, start = 24.dp, end = 24.dp)
+                .fillMaxWidth()
+                .wrapContentHeight(),
+            text = nicknameInput,
+            onValueChange = {
+                if (regex.matches(it) || it.isEmpty()) {
+                    nicknameInput = it
+                }
+                resetNicknameErrorState()
+            },
+            hintId = R.string.nickname_hint,
+            guidanceId = if (isInvalidNickname) R.string.err_duplicated_nickname else R.string.nickname_input_guide,
+            isError = isInvalidNickname
         )
     }
+
+    MissionMateTextButton(
+        modifier = modifier
+            .padding(bottom = 36.dp, start = 24.dp, end = 24.dp)
+            .fillMaxWidth(),
+        textId = R.string.save,
+        buttonType = if (nicknameInput.trim().isEmpty()) {
+            MissionMateButtonType.DISABLED
+        } else {
+            MissionMateButtonType.ACTIVE
+        },
+        onClick = { onClickSave(nicknameInput) }
+    )
 }
 
 @Composable
 fun CharacterLargeImage(
     modifier: Modifier = Modifier,
     @DrawableRes imageResId: Int,
+    @DrawableRes backgroundResId: Int,
 ) {
     Image(
-        modifier = modifier
-            .padding(10.dp)
-            .fillMaxSize(),
         painter = painterResource(id = imageResId),
-        contentDescription = ""
+        contentDescription = null,
+        modifier = modifier
+            .fillMaxSize()
+            .paint(
+                painter = painterResource(backgroundResId),
+                contentScale = ContentScale.FillWidth,
+            )
     )
 }
 
@@ -199,11 +265,20 @@ fun CharacterRow(
     characters: List<CharacterListItem>,
     onClick: (CharacterListItem) -> Unit
 ) {
+    val scrollState = rememberLazyListState()
+
+    LaunchedEffect(key1 = characters) {
+        characters.indexOfFirst { it.isSelected }.takeIf { it > 0 }?.let {
+            scrollState.animateScrollToItem(it - 1)
+        }
+    }
+
     LazyRow(
         modifier = modifier
             .padding(top = 18.dp),
         horizontalArrangement = Arrangement.spacedBy(space = 8.dp),
-        contentPadding = PaddingValues(horizontal = 24.dp)
+        contentPadding = PaddingValues(horizontal = 24.dp),
+        state = scrollState
     ) {
         items(items = characters, key = { it.imageResId }) {
             CharacterElement(
@@ -248,39 +323,52 @@ fun CharacterElement(
     }
 }
 
+@Composable
+private fun ProfileLoading() {
+    Box(modifier = Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
+        CircularProgressIndicator()
+    }
+}
+
 @Preview
 @Composable
-fun ProfileScreenPreview() {
+fun ColumnScope.ProfileScreenPreview() {
     ProfileScreen(
         profileSettingType = ProfileSettingType.CREATE,
+        initialNickname = "",
         characters = listOf(
             CharacterListItem(
+                type = CharacterType.RABBIT,
                 imageResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.img_rabbit_selected,
                 nameResId = R.string.rabbit_name,
                 isSelected = true,
-                backgroundColor = ColorPink_FFFFE4E4
+                backgroundResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.background_rabbit
             ),
             CharacterListItem(
+                type = CharacterType.CAT,
                 imageResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.img_cat_selected,
                 nameResId = R.string.cat_name,
                 isSelected = false,
-                backgroundColor = ColorPink_FFFFE4E4
+                backgroundResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.background_cat
             ),
             CharacterListItem(
+                type = CharacterType.DOG,
                 imageResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.img_dog_selected,
                 nameResId = R.string.dog_name,
                 isSelected = false,
-                backgroundColor = ColorPink_FFFFE4E4
+                backgroundResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.background_dog
             ),
             CharacterListItem(
+                type = CharacterType.PANDA,
                 imageResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.img_panda_selected,
                 nameResId = R.string.panda_name,
                 isSelected = false,
-                backgroundColor = ColorPink_FFFFE4E4
+                backgroundResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.background_panda
             ),
         ),
-        onclickCharacter = {},
-        onClickSave = {}
+        onClickCharacter = {},
+        onClickSave = {},
+        isInvalidNickname = false
     )
 }
 
@@ -289,10 +377,11 @@ fun ProfileScreenPreview() {
 fun CharacterElementPreview() {
     CharacterElement(
         character = CharacterListItem(
+            type = CharacterType.CAT,
             imageResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.img_cat_selected,
             nameResId = R.string.cat_name,
             isSelected = false,
-            backgroundColor = ColorPink_FFFFE4E4
+            backgroundResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.background_cat
         )
     )
 }
\ No newline at end of file
diff --git a/feature/profile/src/main/java/com/luckyoct/feature/profile/ProfileViewModel.kt b/feature/profile/src/main/java/com/luckyoct/feature/profile/ProfileViewModel.kt
index 41ed8210..5298d4c1 100644
--- a/feature/profile/src/main/java/com/luckyoct/feature/profile/ProfileViewModel.kt
+++ b/feature/profile/src/main/java/com/luckyoct/feature/profile/ProfileViewModel.kt
@@ -1,5 +1,6 @@
 package com.luckyoct.feature.profile
 
+import android.util.Log
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.viewModelScope
@@ -10,9 +11,11 @@ import com.goalpanzi.mission_mate.core.designsystem.theme.ColorLightGreen_FFC2E7
 import com.goalpanzi.mission_mate.core.designsystem.theme.ColorLightYellow_FFFFE59A
 import com.goalpanzi.mission_mate.core.designsystem.theme.ColorPink_FFFFE4E4
 import com.goalpanzi.mission_mate.core.domain.usecase.ProfileUseCase
+import com.luckyoct.core.model.CharacterType
+import com.luckyoct.core.model.UserProfile
 import com.luckyoct.core.model.base.NetworkResult
 import com.luckyoct.feature.profile.model.CharacterListItem
-import com.luckyoct.feature.profile.model.ProfileEvent
+import com.luckyoct.feature.profile.model.ProfileUiState
 import dagger.assisted.Assisted
 import dagger.assisted.AssistedFactory
 import dagger.assisted.AssistedInject
@@ -25,7 +28,7 @@ import kotlinx.coroutines.launch
 class ProfileViewModel @AssistedInject constructor(
     @Assisted private val profileSettingType: ProfileSettingType,
     private val profileUseCase: ProfileUseCase
-): ViewModel() {
+) : ViewModel() {
 
     @AssistedFactory
     interface Factory {
@@ -44,77 +47,78 @@ class ProfileViewModel @AssistedInject constructor(
         }
     }
 
-    private val defaultImageIds = listOf(
-        com.goalpanzi.mission_mate.core.designsystem.R.drawable.img_rabbit_selected,
-        com.goalpanzi.mission_mate.core.designsystem.R.drawable.img_cat_selected,
-        com.goalpanzi.mission_mate.core.designsystem.R.drawable.img_dog_selected,
-        com.goalpanzi.mission_mate.core.designsystem.R.drawable.img_panda_selected,
-        com.goalpanzi.mission_mate.core.designsystem.R.drawable.img_bear_selected,
-        com.goalpanzi.mission_mate.core.designsystem.R.drawable.img_bird_selected
-    )
-    private val defaultNameIds = listOf(
-        R.string.rabbit_name,
-        R.string.cat_name,
-        R.string.dog_name,
-        R.string.panda_name,
-        R.string.bear_name,
-        R.string.bird_name
-    )
-    private val defaultColors = listOf(
-        ColorPink_FFFFE4E4,
-        ColorBlue_FFBFD7FF,
-        ColorLightYellow_FFFFE59A,
-        ColorLightGreen_FFC2E792,
-        ColorLightBrown_FFF7D8B3,
-        ColorLightBlue_FFBCE7FF
-    )
+    private val defaultCharacters = CharacterListItem.createDefaultList()
 
-    private val _event = MutableSharedFlow<ProfileEvent>()
-    val event = _event.asSharedFlow()
+    private val _uiState = MutableStateFlow<ProfileUiState>(ProfileUiState.Loading)
+    val uiState = _uiState.asStateFlow()
 
-    private val _characters = MutableStateFlow(
-        when (profileSettingType) {
-            ProfileSettingType.CREATE -> {
-                defaultImageIds.indices.map {
-                    CharacterListItem(
-                        imageResId = defaultImageIds[it],
-                        nameResId = defaultNameIds[it],
-                        isSelected = it == 0,
-                        backgroundColor = defaultColors[it]
+    private val _isInvalidNickname = MutableStateFlow(false)
+    val isInvalidNickname = _isInvalidNickname.asStateFlow()
+
+    private val _isSaveSuccess = MutableSharedFlow<Boolean>()
+    val isSaveSuccess = _isSaveSuccess.asSharedFlow()
+
+    init {
+        viewModelScope.launch {
+            when (profileSettingType) {
+                ProfileSettingType.CREATE -> {
+                    _uiState.value = ProfileUiState.Success(
+                        nickname = "",
+                        characterList = defaultCharacters.toMutableList().apply {
+                            set(0, get(0).copy(isSelected = true))
+                        }
                     )
                 }
-            }
-            // TODO : set my character selected
-            ProfileSettingType.SETTING -> {
-                defaultImageIds.indices.map {
-                    CharacterListItem(
-                        imageResId = defaultImageIds[it],
-                        nameResId = defaultNameIds[it],
-                        isSelected = false,
-                        backgroundColor = defaultColors[it]
+
+                ProfileSettingType.SETTING -> {
+                    val userProfile = profileUseCase.getProfile()
+                        ?: UserProfile(
+                            nickname = "",
+                            characterType = CharacterType.RABBIT
+                        ) // TODO : API
+                    _uiState.value = ProfileUiState.Success(
+                        nickname = userProfile.nickname,
+                        characterList = defaultCharacters.toMutableList().apply {
+                            val index = indexOfFirst { it.type == userProfile.characterType }
+                            set(index, get(index).copy(isSelected = true))
+                        }
                     )
                 }
             }
         }
-    )
-    val characters = _characters.asStateFlow()
+    }
 
     fun selectCharacter(character: CharacterListItem) {
-        _characters.value = _characters.value.map {
-            it.copy(isSelected = it == character)
-        }
+        val state = uiState.value as? ProfileUiState.Success ?: return
+        _uiState.value = state.copy(
+            characterList = state.characterList.map {
+                it.copy(isSelected = it == character)
+            }
+        )
+    }
+
+    fun resetNicknameErrorState() {
+        _isInvalidNickname.value = false
     }
 
     fun saveProfile(nickname: String) {
         if (nickname.isEmpty()) return
-
         viewModelScope.launch {
-            val response = profileUseCase.saveProfile(nickname, characters.value.indexOfFirst { it.isSelected })
-            when (response) {
+            val selectedItem = (uiState.value as? ProfileUiState.Success)?.characterList?.find {
+                it.isSelected
+            } ?: return@launch
+
+            when(val response = profileUseCase.saveProfile(nickname, selectedItem.type)) {
                 is NetworkResult.Success -> {
-                    _event.emit(ProfileEvent.Success)
+                    profileUseCase.saveProfile(nickname, selectedItem.type)
+                    _isSaveSuccess.emit(true)
+                }
+                is NetworkResult.Exception -> {}
+                is NetworkResult.Error -> {
+                    if (response.code == 409) {
+                        _isInvalidNickname.emit(true)
+                    }
                 }
-                else -> return@launch
             }
         }
     }
diff --git a/feature/profile/src/main/java/com/luckyoct/feature/profile/model/CharacterListItem.kt b/feature/profile/src/main/java/com/luckyoct/feature/profile/model/CharacterListItem.kt
index 824e9390..6b0cf1b9 100644
--- a/feature/profile/src/main/java/com/luckyoct/feature/profile/model/CharacterListItem.kt
+++ b/feature/profile/src/main/java/com/luckyoct/feature/profile/model/CharacterListItem.kt
@@ -2,11 +2,54 @@ package com.luckyoct.feature.profile.model
 
 import androidx.annotation.DrawableRes
 import androidx.annotation.StringRes
-import androidx.compose.ui.graphics.Color
+import com.luckyoct.core.model.CharacterType
+import com.luckyoct.feature.profile.R
 
 data class CharacterListItem(
+    val type: CharacterType,
     @DrawableRes val imageResId: Int,
     @StringRes val nameResId: Int,
-    val isSelected: Boolean,
-    val backgroundColor: Color
-)
+    val isSelected: Boolean = false,
+    @DrawableRes val backgroundResId: Int
+) {
+    companion object {
+        fun createDefaultList() = listOf(
+            CharacterListItem(
+                type = CharacterType.RABBIT,
+                imageResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.img_rabbit_selected,
+                nameResId = R.string.rabbit_name,
+                backgroundResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.background_rabbit
+            ),
+            CharacterListItem(
+                type = CharacterType.CAT,
+                imageResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.img_cat_selected,
+                nameResId = R.string.cat_name,
+                backgroundResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.background_cat
+            ),
+            CharacterListItem(
+                type = CharacterType.DOG,
+                imageResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.img_dog_selected,
+                nameResId = R.string.dog_name,
+                backgroundResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.background_dog
+            ),
+            CharacterListItem(
+                type = CharacterType.PANDA,
+                imageResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.img_panda_selected,
+                nameResId = R.string.panda_name,
+                backgroundResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.background_panda
+            ),
+            CharacterListItem(
+                type = CharacterType.BEAR,
+                imageResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.img_bear_selected,
+                nameResId = R.string.bear_name,
+                backgroundResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.background_bear
+            ),
+            CharacterListItem(
+                type = CharacterType.BIRD,
+                imageResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.img_bird_selected,
+                nameResId = R.string.bird_name,
+                backgroundResId = com.goalpanzi.mission_mate.core.designsystem.R.drawable.background_bird
+            )
+        )
+    }
+}
diff --git a/feature/profile/src/main/java/com/luckyoct/feature/profile/model/ProfileUiState.kt b/feature/profile/src/main/java/com/luckyoct/feature/profile/model/ProfileUiState.kt
index 03f1b26a..3133f867 100644
--- a/feature/profile/src/main/java/com/luckyoct/feature/profile/model/ProfileUiState.kt
+++ b/feature/profile/src/main/java/com/luckyoct/feature/profile/model/ProfileUiState.kt
@@ -1,8 +1,11 @@
 package com.luckyoct.feature.profile.model
 
-sealed interface ProfileEvent {
+sealed interface ProfileUiState {
 
-    data object Loading : ProfileEvent
+    data object Loading : ProfileUiState
 
-    data object Success : ProfileEvent
+    data class Success(
+        val nickname: String,
+        val characterList: List<CharacterListItem>
+    ) : ProfileUiState
 }
\ No newline at end of file
diff --git a/feature/profile/src/main/res/values/strings.xml b/feature/profile/src/main/res/values/strings.xml
index 4443427d..38f15500 100644
--- a/feature/profile/src/main/res/values/strings.xml
+++ b/feature/profile/src/main/res/values/strings.xml
@@ -5,6 +5,7 @@
     <string name="nickname_hint">닉네임 입력</string>
     <string name="nickname_input_guide">1~6자, 한글, 영문 또는 숫자를 입력하세요.</string>
     <string name="save">저장하기</string>
+    <string name="err_duplicated_nickname">이미 존재하는 회원 닉네임이에요.</string>
 
     <string name="rabbit_name">뚝심토끼</string>
     <string name="cat_name">포기란없다냥</string>
diff --git a/feature/setting/src/main/java/com/luckyoct/feature/setting/Util.kt b/feature/setting/src/main/java/com/luckyoct/feature/setting/Util.kt
new file mode 100644
index 00000000..ba1ad556
--- /dev/null
+++ b/feature/setting/src/main/java/com/luckyoct/feature/setting/Util.kt
@@ -0,0 +1,22 @@
+package com.luckyoct.feature.setting
+
+import android.content.Context
+import android.content.pm.PackageManager
+import android.os.Build
+
+object Util {
+    fun getAppVersionName(context: Context): String {
+        return try {
+            val packageManager = context.packageManager
+            val packageName = context.packageName
+            val packageInfo = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+                packageManager.getPackageInfo(packageName, PackageManager.PackageInfoFlags.of(0))
+            } else {
+                packageManager.getPackageInfo(packageName, 0)
+            }
+            packageInfo.versionName
+        } catch (e: Exception) {
+            ""
+        }
+    }
+}
\ No newline at end of file
diff --git a/feature/setting/src/main/java/com/luckyoct/feature/setting/navigation/SettingNavigation.kt b/feature/setting/src/main/java/com/luckyoct/feature/setting/navigation/SettingNavigation.kt
index c82f8bdc..e454eaf8 100644
--- a/feature/setting/src/main/java/com/luckyoct/feature/setting/navigation/SettingNavigation.kt
+++ b/feature/setting/src/main/java/com/luckyoct/feature/setting/navigation/SettingNavigation.kt
@@ -27,7 +27,6 @@ fun NavController.navigateToPrivacyPolicy() {
 fun NavGraphBuilder.settingNavGraph(
     onBackClick: () -> Unit,
     onClickProfileSetting: () -> Unit,
-    onClickInquiry: () -> Unit,
     onClickServicePolicy: () -> Unit,
     onClickPrivacyPolicy: () -> Unit,
     onClickLogout: () -> Unit
@@ -36,7 +35,6 @@ fun NavGraphBuilder.settingNavGraph(
         SettingRoute(
             onBackClick = onBackClick,
             onClickProfileSetting = onClickProfileSetting,
-            onClickInquiry = onClickInquiry,
             onClickServicePolicy = onClickServicePolicy,
             onClickPrivacyPolicy = onClickPrivacyPolicy,
             onLogout = onClickLogout
diff --git a/feature/setting/src/main/java/com/luckyoct/feature/setting/screen/SettingScreen.kt b/feature/setting/src/main/java/com/luckyoct/feature/setting/screen/SettingScreen.kt
index 043dfaab..a7434a18 100644
--- a/feature/setting/src/main/java/com/luckyoct/feature/setting/screen/SettingScreen.kt
+++ b/feature/setting/src/main/java/com/luckyoct/feature/setting/screen/SettingScreen.kt
@@ -21,18 +21,17 @@ import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.res.vectorResource
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
-import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import com.goalpanzi.mission_mate.core.designsystem.component.MissionMateDialog
 import com.goalpanzi.mission_mate.core.designsystem.theme.ColorGray1_FF404249
 import com.goalpanzi.mission_mate.core.designsystem.theme.ColorGray3_FF727484
@@ -43,13 +42,13 @@ import com.goalpanzi.mission_mate.core.designsystem.theme.component.MissionMateT
 import com.goalpanzi.mission_mate.core.designsystem.theme.component.NavigationType
 import com.luckyoct.feature.setting.Event
 import com.luckyoct.feature.setting.R
+import com.luckyoct.feature.setting.Util
 import kotlinx.coroutines.flow.collectLatest
 
 @Composable
 fun SettingRoute(
     modifier: Modifier = Modifier,
     onClickProfileSetting: () -> Unit,
-    onClickInquiry: () -> Unit,
     onClickServicePolicy: () -> Unit,
     onClickPrivacyPolicy: () -> Unit,
     onBackClick: () -> Unit,
@@ -85,7 +84,6 @@ fun SettingRoute(
         modifier = modifier,
         onBackClick = { onBackClick() },
         onClickProfileSetting = { onClickProfileSetting() },
-        onClickInquiry = { onClickInquiry() },
         onClickServicePolicy = { onClickServicePolicy() },
         onClickPrivacyPolicy = { onClickPrivacyPolicy() },
         onClickLogout = { showLogoutDialog.value = true },
@@ -98,7 +96,6 @@ fun SettingScreen(
     modifier: Modifier = Modifier,
     onBackClick: () -> Unit,
     onClickProfileSetting: () -> Unit,
-    onClickInquiry: () -> Unit,
     onClickServicePolicy: () -> Unit,
     onClickPrivacyPolicy: () -> Unit,
     onClickLogout: () -> Unit,
@@ -139,10 +136,28 @@ fun SettingScreen(
                 onClick = { onClickProfileSetting() }
             )
             Divider()
+            SettingHeader(titleRes = R.string.version_info)
+            SettingContent(
+                titleRes = R.string.current_version,
+                subContent = {
+                    Text(
+                        text = Util.getAppVersionName(LocalContext.current),
+                        style = MissionMateTypography.body_xl_regular,
+                        color = ColorGray1_FF404249
+                    )
+                }
+            )
+            Divider()
             SettingHeader(titleRes = R.string.help_desk)
             SettingContent(
                 titleRes = R.string.inquiry,
-                onClick = { onClickInquiry() }
+                subContent = {
+                    Text(
+                        text = stringResource(id = R.string.inquiry_email),
+                        style = MissionMateTypography.body_xl_regular,
+                        color = ColorGray1_FF404249
+                    )
+                }
             )
             Divider()
             SettingHeader(titleRes = R.string.policy)
@@ -195,7 +210,11 @@ fun SettingContent(
         modifier = modifier
             .fillMaxWidth()
             .wrapContentHeight()
-            .clickable { onClick?.invoke() },
+            .run {
+                onClick?.let {
+                    clickable { it() }
+                } ?: run { this }
+            },
         verticalAlignment = Alignment.CenterVertically
     ) {
         Spacer(modifier = modifier.width(24.dp))
@@ -270,7 +289,6 @@ fun SettingScreenPreview() {
     SettingScreen(
         onBackClick = {},
         onClickProfileSetting = {},
-        onClickInquiry = {},
         onClickServicePolicy = {},
         onClickPrivacyPolicy = {},
         onClickLogout = {},
diff --git a/feature/setting/src/main/res/values/strings.xml b/feature/setting/src/main/res/values/strings.xml
index 97bce385..ef1de721 100644
--- a/feature/setting/src/main/res/values/strings.xml
+++ b/feature/setting/src/main/res/values/strings.xml
@@ -18,4 +18,5 @@
     <string name="confirm_delete_account">계정탈퇴\n하시겠습니까?</string>
     <string name="confirm_delete_account_content">탈퇴하면 저장된 데이터가\n모두 초기화돼요.</string>
     <string name="require_delete_account">탈퇴하기</string>
+    <string name="inquiry_email">missionmateteam@gmail.com</string>
 </resources>
\ No newline at end of file
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index e4bbee1f..efa37d72 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -119,6 +119,7 @@ jetbrains-kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref =
 kotlin-plugin-serialization = { id = "org.jetbrains.kotlin.plugin.serialization", version.ref = "kotlin" }
 compose-compiler = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
 kotlin-jvm = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
+kotlin-parcelize = { id = "org.jetbrains.kotlin.plugin.parcelize",  version.ref = "kotlin"  }
 
 ## KSP
 kotlin-ksp = { id = "com.google.devtools.ksp" , version.ref = "ksp"}