diff --git a/app/build.gradle b/app/build.gradle
index 3a2689d..62cb488 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,8 +1,12 @@
 plugins {
     id 'com.android.application'
     id 'org.jetbrains.kotlin.android'
+    id 'org.jetbrains.kotlin.plugin.serialization'
 }
 
+Properties properties = new Properties()
+properties.load(project.rootProject.file('local.properties').newDataInputStream())
+
 android {
     namespace 'com.sopt.now'
     compileSdk 34
@@ -15,6 +19,8 @@ android {
         versionName "1.0"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        buildConfigField "String", "AUTH_BASE_URL", properties["base.url"]
+        buildConfigField "String", "FOLLOWER_URL", properties["follower.url"]
     }
 
     buildTypes {
@@ -32,12 +38,13 @@ android {
     }
     buildFeatures {
         viewBinding true
+        buildConfig true
     }
 }
 
 dependencies {
 
-    implementation 'androidx.core:core-ktx:1.12.0'
+    implementation 'androidx.core:core-ktx:1.13.0'
     implementation 'androidx.appcompat:appcompat:1.6.1'
     implementation 'com.google.android.material:material:1.11.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
@@ -45,8 +52,24 @@ dependencies {
     androidTestImplementation 'androidx.test.ext:junit:1.1.5'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
 
+    // Lifecycle Viewmodel
     implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.7.0'
 
+    // Fragment && Activity
     implementation 'androidx.fragment:fragment-ktx:1.6.2'
-    implementation 'androidx.activity:activity-ktx:1.8.2'
+    implementation 'androidx.activity:activity-ktx:1.9.0'
+
+    // Retrofit
+    implementation 'com.squareup.retrofit2:retrofit:2.9.0'
+    implementation 'org.jetbrains.kotlinx:kotlinx-serialization-json:1.5.1'
+    implementation 'com.jakewharton.retrofit:retrofit2-kotlinx-serialization-converter:1.0.0'
+
+    // OKHttp
+    implementation platform('com.squareup.okhttp3:okhttp-bom:4.10.0')
+    implementation 'com.squareup.okhttp3:okhttp'
+    implementation 'com.squareup.okhttp3:logging-interceptor'
+
+    // Glide
+    implementation 'com.github.bumptech.glide:glide:4.13.0'
+    annotationProcessor 'com.github.bumptech.glide:compiler:4.13.0'
 }
\ No newline at end of file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index ec5264f..507b979 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -2,6 +2,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
+    <uses-permission android:name="android.permission.INTERNET" />
     <application
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
@@ -11,9 +12,10 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.NOWSOPTAndroid"
+        android:usesCleartextTraffic="true"
         tools:targetApi="31">
         <activity
-            android:name=".ui.login.LoginActivity"
+            android:name=".ui.signIn.SignInActivity"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
diff --git a/app/src/main/java/com/sopt/now/data/ItemData.kt b/app/src/main/java/com/sopt/now/data/model/ItemData.kt
similarity index 81%
rename from app/src/main/java/com/sopt/now/data/ItemData.kt
rename to app/src/main/java/com/sopt/now/data/model/ItemData.kt
index 3e24bbb..5eadebf 100644
--- a/app/src/main/java/com/sopt/now/data/ItemData.kt
+++ b/app/src/main/java/com/sopt/now/data/model/ItemData.kt
@@ -1,4 +1,4 @@
-package com.sopt.now.data
+package com.sopt.now.data.model
 
 import androidx.annotation.DrawableRes
 
@@ -12,7 +12,7 @@ sealed class ItemData {
 
 
     data class Friend(
-        @DrawableRes val profileImage: Int?,
+        val profileImage: String?,
         val name: String,
         val description: String?,
     ) : ItemData()
diff --git a/app/src/main/java/com/sopt/now/data/model/RequestSignInDto.kt b/app/src/main/java/com/sopt/now/data/model/RequestSignInDto.kt
new file mode 100644
index 0000000..c6ba27e
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/model/RequestSignInDto.kt
@@ -0,0 +1,12 @@
+package com.sopt.now.data.model
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class RequestSignInDto(
+    @SerialName("authenticationId")
+    val authenticationId: String,
+    @SerialName("password")
+    val password: String,
+)
diff --git a/app/src/main/java/com/sopt/now/data/model/RequestSignUpDto.kt b/app/src/main/java/com/sopt/now/data/model/RequestSignUpDto.kt
new file mode 100644
index 0000000..a8145ab
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/model/RequestSignUpDto.kt
@@ -0,0 +1,16 @@
+package com.sopt.now.data.model
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class RequestSignUpDto(
+    @SerialName("authenticationId")
+    val authenticationId: String,
+    @SerialName("password")
+    val password: String,
+    @SerialName("nickname")
+    val nickname: String,
+    @SerialName("phone")
+    val phone: String,
+)
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/data/model/ResponseInfoDto.kt b/app/src/main/java/com/sopt/now/data/model/ResponseInfoDto.kt
new file mode 100644
index 0000000..a712ac8
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/model/ResponseInfoDto.kt
@@ -0,0 +1,24 @@
+package com.sopt.now.data.model
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class ResponseInfoDto(
+    @SerialName("code")
+    val code: Int,
+    @SerialName("message")
+    val message: String,
+    @SerialName("data")
+    val data: UserInfo,
+)
+
+@Serializable
+data class UserInfo(
+    @SerialName("authenticationId")
+    val authenticationId: String,
+    @SerialName("nickname")
+    val nickname: String,
+    @SerialName("phone")
+    val phone: String,
+)
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/data/model/ResponseSignInDto.kt b/app/src/main/java/com/sopt/now/data/model/ResponseSignInDto.kt
new file mode 100644
index 0000000..e1ef401
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/model/ResponseSignInDto.kt
@@ -0,0 +1,12 @@
+package com.sopt.now.data.model
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class ResponseSignInDto(
+    @SerialName("code")
+    val code: Int,
+    @SerialName("message")
+    val message: String,
+)
diff --git a/app/src/main/java/com/sopt/now/data/model/ResponseSignUpDto.kt b/app/src/main/java/com/sopt/now/data/model/ResponseSignUpDto.kt
new file mode 100644
index 0000000..3dc30ef
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/model/ResponseSignUpDto.kt
@@ -0,0 +1,12 @@
+package com.sopt.now.data.model
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class ResponseSignUpDto(
+    @SerialName("code")
+    val code: Int,
+    @SerialName("message")
+    val message: String,
+)
diff --git a/app/src/main/java/com/sopt/now/data/model/ResponseUserDto.kt b/app/src/main/java/com/sopt/now/data/model/ResponseUserDto.kt
new file mode 100644
index 0000000..aca3029
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/model/ResponseUserDto.kt
@@ -0,0 +1,29 @@
+package com.sopt.now.data.model
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class UserDataResponse(
+    val page: Int,
+    @SerialName("per_page") val perPage: Int,
+    val total: Int,
+    @SerialName("total_pages") val totalPages: Int,
+    val data: List<UserData>,
+    val support: Support,
+)
+
+@Serializable
+data class UserData(
+    val id: Int,
+    val email: String,
+    @SerialName("first_name") val firstName: String,
+    @SerialName("last_name") val lastName: String,
+    val avatar: String,
+)
+
+@Serializable
+data class Support(
+    val url: String,
+    val text: String,
+)
diff --git a/app/src/main/java/com/sopt/now/data/model/SignInState.kt b/app/src/main/java/com/sopt/now/data/model/SignInState.kt
new file mode 100644
index 0000000..8756c3b
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/model/SignInState.kt
@@ -0,0 +1,6 @@
+package com.sopt.now.data.model
+
+data class SignInState(
+    val isSuccess: Boolean,
+    val message: String,
+)
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/data/model/SignUpState.kt b/app/src/main/java/com/sopt/now/data/model/SignUpState.kt
new file mode 100644
index 0000000..c7c43d4
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/model/SignUpState.kt
@@ -0,0 +1,6 @@
+package com.sopt.now.data.model
+
+data class SignUpState(
+    val isSuccess: Boolean,
+    val message: String,
+)
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/data/module/ApiFactory.kt b/app/src/main/java/com/sopt/now/data/module/ApiFactory.kt
new file mode 100644
index 0000000..9c7ae56
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/module/ApiFactory.kt
@@ -0,0 +1,42 @@
+package com.sopt.now.data.module
+
+import com.jakewharton.retrofit2.converter.kotlinx.serialization.asConverterFactory
+import com.sopt.now.compose.BuildConfig
+import com.sopt.now.data.network.AuthService
+import com.sopt.now.data.network.FollowerService
+import kotlinx.serialization.json.Json
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.OkHttpClient
+import retrofit2.Retrofit
+import retrofit2.create
+
+object ApiFactory {
+    private const val BASE_URL: String = BuildConfig.AUTH_BASE_URL
+    private const val FOLLOWER_URL: String = BuildConfig.FOLLOWER_URL
+
+    private val interceptorClient = OkHttpClient().newBuilder()
+        .addInterceptor(AuthInterceptor()).build()
+
+    val baseRetrofit: Retrofit by lazy {
+        Retrofit.Builder()
+            .baseUrl(BASE_URL)
+            .client(interceptorClient)
+            .addConverterFactory(Json.asConverterFactory("application/json".toMediaType()))
+            .build()
+    }
+
+    val followerRetrofit: Retrofit by lazy {
+        Retrofit.Builder()
+            .baseUrl(FOLLOWER_URL)
+            .addConverterFactory(Json.asConverterFactory("application/json".toMediaType()))
+            .build()
+    }
+
+    inline fun <reified T> createBaseRetrofit(): T = baseRetrofit.create()
+    inline fun <reified T> createFollowerRetrofit(): T = followerRetrofit.create()
+}
+
+object ServicePool {
+    val authService = ApiFactory.createBaseRetrofit<AuthService>()
+    val followerService = ApiFactory.createFollowerRetrofit<FollowerService>()
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/data/module/AuthInterceptor.kt b/app/src/main/java/com/sopt/now/data/module/AuthInterceptor.kt
new file mode 100644
index 0000000..ac96a76
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/module/AuthInterceptor.kt
@@ -0,0 +1,17 @@
+package com.sopt.now.data.module
+
+import okhttp3.Interceptor
+import okhttp3.Response
+
+class AuthInterceptor : Interceptor {
+
+    override fun intercept(chain: Interceptor.Chain): Response {
+        val originalRequest = chain.request()
+
+        val newRequest = originalRequest.newBuilder()
+            .addHeader("memberId", "495")
+            .build()
+
+        return chain.proceed(newRequest)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/data/network/AuthService.kt b/app/src/main/java/com/sopt/now/data/network/AuthService.kt
new file mode 100644
index 0000000..6d2995e
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/network/AuthService.kt
@@ -0,0 +1,27 @@
+package com.sopt.now.data.network
+
+import com.sopt.now.data.model.RequestSignInDto
+import com.sopt.now.data.model.RequestSignUpDto
+import com.sopt.now.data.model.ResponseInfoDto
+import com.sopt.now.data.model.ResponseSignInDto
+import com.sopt.now.data.model.ResponseSignUpDto
+import retrofit2.Call
+import retrofit2.http.Body
+import retrofit2.http.GET
+import retrofit2.http.POST
+
+interface AuthService {
+    @POST("member/join")
+    fun signUp(
+        @Body request: RequestSignUpDto,
+    ): Call<ResponseSignUpDto>
+
+    @POST("member/login")
+    fun signIn(
+        @Body request: RequestSignInDto,
+    ): Call<ResponseSignInDto>
+
+    @GET("member/info")
+    fun memberInfo(
+    ): Call<ResponseInfoDto>
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/data/network/FollowerService.kt b/app/src/main/java/com/sopt/now/data/network/FollowerService.kt
new file mode 100644
index 0000000..33100bb
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/data/network/FollowerService.kt
@@ -0,0 +1,13 @@
+package com.sopt.now.data.network
+
+import com.sopt.now.data.model.UserDataResponse
+import retrofit2.Call
+import retrofit2.http.GET
+import retrofit2.http.Query
+
+interface FollowerService {
+    @GET("/api/users")
+    fun getUserList(
+        @Query("page") page: Int,
+    ): Call<UserDataResponse>
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/ui/adapter/ItemAdapter.kt b/app/src/main/java/com/sopt/now/ui/adapter/ItemAdapter.kt
index b1dc9a6..3886cda 100644
--- a/app/src/main/java/com/sopt/now/ui/adapter/ItemAdapter.kt
+++ b/app/src/main/java/com/sopt/now/ui/adapter/ItemAdapter.kt
@@ -5,7 +5,8 @@ import android.view.View
 import android.view.ViewGroup
 import androidx.recyclerview.widget.RecyclerView
 import androidx.recyclerview.widget.RecyclerView.ViewHolder
-import com.sopt.now.data.ItemData
+import com.bumptech.glide.Glide
+import com.sopt.now.data.model.ItemData
 import com.sopt.now.databinding.ItemFriendBinding
 import com.sopt.now.databinding.ItemMyProfileBinding
 
@@ -47,9 +48,12 @@ class ItemAdapter(private val items: MutableList<ItemData>) : RecyclerView.Adapt
             }
 
             is ItemData.Friend -> {
-                (holder as FriendViewHolder).profileImage.setImageResource(item.profileImage!!)
-                holder.name.text = item.name
+                (holder as FriendViewHolder).name.text = item.name
                 holder.description.text = item.description
+                Glide.with(holder.profileImage.context)
+                    .load(item.profileImage)
+                    .into(holder.profileImage)
+
                 holder.itemView.setOnClickListener {
                     itemClick?.onItemClick(it, position)
                 }
diff --git a/app/src/main/java/com/sopt/now/ui/home/HomFragment.kt b/app/src/main/java/com/sopt/now/ui/home/HomeFragment.kt
similarity index 64%
rename from app/src/main/java/com/sopt/now/ui/home/HomFragment.kt
rename to app/src/main/java/com/sopt/now/ui/home/HomeFragment.kt
index 9318151..bcdaa64 100644
--- a/app/src/main/java/com/sopt/now/ui/home/HomFragment.kt
+++ b/app/src/main/java/com/sopt/now/ui/home/HomeFragment.kt
@@ -6,10 +6,14 @@ import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.viewModels
-import com.sopt.now.data.ItemData
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.lifecycleScope
+import androidx.lifecycle.repeatOnLifecycle
+import androidx.recyclerview.widget.LinearLayoutManager
 import com.sopt.now.databinding.FragmentHomeBinding
 import com.sopt.now.ui.adapter.ItemAdapter
 import com.sopt.now.ui.home.viewModel.HomeViewModel
+import kotlinx.coroutines.launch
 
 class HomeFragment : Fragment() {
     private var _binding: FragmentHomeBinding? = null
@@ -31,10 +35,8 @@ class HomeFragment : Fragment() {
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-        val items = viewModel.friendList
-        val friendAdapter = ItemAdapter(items)
-        binding.rvFriends.adapter = friendAdapter
-        setFriendList(items)
+
+        setCollect()
     }
 
     override fun onDestroy() {
@@ -42,8 +44,20 @@ class HomeFragment : Fragment() {
         super.onDestroy()
     }
 
-    private fun setFriendList(friendList: List<ItemData>) {
-        friendList.toList()
+    private fun setCollect() {
+        lifecycleScope.launch {
+            repeatOnLifecycle(Lifecycle.State.STARTED) {
+                viewModel.followerState.collect {
+                    setAdapter()
+                }
+            }
+        }
     }
 
+    private fun setAdapter() {
+        val friendAdapter = ItemAdapter(viewModel.friendList)
+
+        binding.rvFriends.layoutManager = LinearLayoutManager(requireContext())
+        binding.rvFriends.adapter = friendAdapter
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/ui/home/viewModel/HomeViewModel.kt b/app/src/main/java/com/sopt/now/ui/home/viewModel/HomeViewModel.kt
index f390781..0c37aa6 100644
--- a/app/src/main/java/com/sopt/now/ui/home/viewModel/HomeViewModel.kt
+++ b/app/src/main/java/com/sopt/now/ui/home/viewModel/HomeViewModel.kt
@@ -2,75 +2,61 @@ package com.sopt.now.ui.home.viewModel
 
 import androidx.lifecycle.ViewModel
 import com.sopt.now.R
-import com.sopt.now.data.ItemData
+import com.sopt.now.data.model.ItemData
+import com.sopt.now.data.model.UserData
+import com.sopt.now.data.model.UserDataResponse
+import com.sopt.now.data.module.ServicePool
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import retrofit2.Call
+import retrofit2.Callback
+import retrofit2.Response
 
 class HomeViewModel : ViewModel() {
-    val friendList = mutableListOf(
+    private val followerService by lazy { ServicePool.followerService }
 
+    private val _followerState = MutableStateFlow<List<UserData>>(emptyList())
+    val followerState = _followerState.asStateFlow()
+
+    val friendList = mutableListOf<ItemData>(
         ItemData.MyProfile(
             profileImage = R.drawable.img_arin,
             name = "김아린",
             description = "업보 청산 중..",
         ),
-        ItemData.Friend(
-            profileImage = R.drawable.img_profile0,
-            name = "이의경",
-            description = "김아린 과제 벼락치기 하지 마라",
-        ),
-        ItemData.Friend(
-            profileImage = R.drawable.img_profile1,
-            name = "최준서",
-            description = "오운완 ㅋㅋ",
-        ),
-        ItemData.Friend(
-            profileImage = R.drawable.img_profile2,
-            name = "이연진",
-            description = "아리니 넘 기엽당..",
-        ),
-        ItemData.Friend(
-            profileImage = R.drawable.img_profile3,
-            name = "손민재",
-            description = "점심 뭐 먹지?",
-        ),
-        ItemData.Friend(
-            profileImage = R.drawable.img_profile4,
-            name = "홍해인",
-            description = "난 눈물의 여왕이야",
-        ),
-        ItemData.Friend(
-            profileImage = R.drawable.img_profile5,
-            name = "백현우",
-            description = "눈물의여왕시작하지말걸공부가안된다",
-        ),
-        ItemData.Friend(
-            profileImage = R.drawable.img_profile6,
-            name = "이서경",
-            description = "저는 환연 과몰입러예요",
-        ),
-        ItemData.Friend(
-            profileImage = R.drawable.img_profile7,
-            name = "이주원",
-            description = "너가 자기야 미안해 했잖아?",
-        ),
-        ItemData.Friend(
-            profileImage = R.drawable.img_profile8,
-            name = "김광태",
-            description = "내일 뭐 해?",
-        ),
-        ItemData.Friend(
-            profileImage = R.drawable.img_profile9,
-            name = "정현규",
-            description = "내봬누",
-        ),
-        ItemData.Friend(
-            profileImage = R.drawable.img_profile10,
-            name = "성해은",
-            description = "벌써 스물 아홉이야",
-        ),
-        ItemData.Friend(
-            profileImage = R.drawable.img_profile11,
-            name = "정규민",
-            description = "오마카세 사줄게",
-        ),
     )
+
+    init {
+        fetchFollowerList()
+    }
+
+    private fun fetchFollowerList() {
+        followerService.getUserList(page = 0).enqueue(object : Callback<UserDataResponse> {
+            override fun onResponse(
+                call: Call<UserDataResponse>,
+                response: Response<UserDataResponse>,
+            ) {
+                if (response.isSuccessful) {
+                    val data = response.body()?.data
+                    if (data != null) {
+                        _followerState.value = data
+                        mapFollowersToFriendList(data)
+                    }
+                }
+            }
+
+            override fun onFailure(call: Call<UserDataResponse>, t: Throwable) {
+            }
+        })
+    }
+
+    fun mapFollowersToFriendList(followers: List<UserData>) {
+        friendList.addAll(followers.map { follower ->
+            ItemData.Friend(
+                profileImage = follower.avatar,
+                name = "${follower.firstName} ${follower.lastName}",
+                description = follower.email
+            )
+        })
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/ui/login/LoginActivity.kt b/app/src/main/java/com/sopt/now/ui/login/LoginActivity.kt
deleted file mode 100644
index 15624df..0000000
--- a/app/src/main/java/com/sopt/now/ui/login/LoginActivity.kt
+++ /dev/null
@@ -1,103 +0,0 @@
-package com.sopt.now.ui.login
-
-import android.app.Activity
-import android.content.Intent
-import android.os.Bundle
-import android.view.MotionEvent
-import android.view.inputmethod.InputMethodManager
-import android.widget.Toast
-import androidx.activity.result.ActivityResult
-import androidx.activity.result.contract.ActivityResultContracts.StartActivityForResult
-import androidx.appcompat.app.AppCompatActivity
-import com.sopt.now.databinding.ActivityLoginBinding
-import com.sopt.now.ui.main.MainActivity
-import com.sopt.now.ui.signUp.SignUpActivity
-
-class LoginActivity : AppCompatActivity() {
-    private lateinit var binding: ActivityLoginBinding
-    private var isCheckLogin: Boolean = false
-    private var savedId: String = ""
-    private var savedPw: String = ""
-    private var savedNickname: String = ""
-    private var savedMbti: String = ""
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        binding = ActivityLoginBinding.inflate(layoutInflater)
-        setContentView(binding.root)
-
-        setLoginButtonClickListeners()
-        setSignUpButtonClickListeners()
-    }
-
-    override fun dispatchTouchEvent(ev: MotionEvent): Boolean {
-        hideKeyboard()
-        return super.dispatchTouchEvent(ev)
-    }
-
-    private val startForResult =
-        registerForActivityResult(StartActivityForResult()) { result: ActivityResult ->
-            if (result.resultCode == Activity.RESULT_OK) {
-                savedId = result.data?.getStringExtra("id") ?: ""
-                savedPw = result.data?.getStringExtra("pw") ?: ""
-                savedNickname = result.data?.getStringExtra("nickname") ?: ""
-                savedMbti = result.data?.getStringExtra("mbti") ?: ""
-            }
-        }
-
-    private fun setLoginButtonClickListeners() {
-        binding.btnLogin.setOnClickListener {
-            val id = binding.edtLoginId.text.toString()
-            val pw = binding.edtLoginPw.text.toString()
-            isCheckLogin = checkLogin(id, pw, savedId, savedPw)
-            if (isCheckLogin) {
-                showToastMessage("로그인 성공!")
-                moveToMain()
-            } else {
-                showToastMessage("로그인에 실패하였습니다.")
-            }
-        }
-    }
-
-    private fun setSignUpButtonClickListeners() {
-        binding.btnSignUp.setOnClickListener {
-            moveToSignUp()
-        }
-    }
-
-
-    private fun hideKeyboard() {
-        val imm = getSystemService(INPUT_METHOD_SERVICE) as InputMethodManager
-        imm.hideSoftInputFromWindow(currentFocus?.windowToken, 0)
-    }
-
-
-    private fun moveToSignUp() {
-        val intent = Intent(this, SignUpActivity::class.java)
-        startForResult.launch(intent)
-    }
-
-    private fun moveToMain() {
-        val intent = Intent(this, MainActivity::class.java).apply {
-            putExtra("id", savedId)
-            putExtra("pw", savedPw)
-            putExtra("nickname", savedNickname)
-            putExtra("mbti", savedMbti)
-        }
-        startActivity(intent)
-        setResult(RESULT_OK, intent)
-        finish()
-    }
-
-    private fun showToastMessage(text: String = "") {
-        Toast.makeText(
-            this,
-            text,
-            Toast.LENGTH_SHORT
-        ).show()
-    }
-
-    private fun checkLogin(id: String, pw: String, savedId: String, savedPw: String): Boolean {
-        return id.isNotEmpty() && pw.isNotEmpty() && id == savedId && pw == savedPw
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/ui/main/MainActivity.kt b/app/src/main/java/com/sopt/now/ui/main/MainActivity.kt
index 2156d96..56805e7 100644
--- a/app/src/main/java/com/sopt/now/ui/main/MainActivity.kt
+++ b/app/src/main/java/com/sopt/now/ui/main/MainActivity.kt
@@ -14,7 +14,7 @@ class MainActivity : AppCompatActivity() {
     private lateinit var id: String
     private lateinit var pw: String
     private lateinit var nickname: String
-    private lateinit var mbti: String
+    private lateinit var phoneNumber: String
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -36,7 +36,7 @@ class MainActivity : AppCompatActivity() {
             id = getStringExtra(ID).toString()
             pw = getStringExtra(PW).toString()
             nickname = getStringExtra(NICKNAME).toString()
-            mbti = getStringExtra(MBTI).toString()
+            phoneNumber = getStringExtra(PHONE_NUMBER).toString()
         }
     }
 
@@ -66,9 +66,7 @@ class MainActivity : AppCompatActivity() {
 
                 R.id.menu_my_page -> {
                     replaceFragment(
-                        MyPageFragment(
-                            id, pw, nickname, mbti
-                        )
+                        MyPageFragment()
                     )
                     true
                 }
@@ -88,6 +86,6 @@ class MainActivity : AppCompatActivity() {
         const val ID = "id"
         const val PW = "pw"
         const val NICKNAME = "nickname"
-        const val MBTI = "mbti"
+        const val PHONE_NUMBER = "phoneNumber"
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/ui/myPage/MyPageFragment.kt b/app/src/main/java/com/sopt/now/ui/myPage/MyPageFragment.kt
index 80de876..4f16028 100644
--- a/app/src/main/java/com/sopt/now/ui/myPage/MyPageFragment.kt
+++ b/app/src/main/java/com/sopt/now/ui/myPage/MyPageFragment.kt
@@ -5,20 +5,22 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
+import androidx.fragment.app.viewModels
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.lifecycleScope
+import androidx.lifecycle.repeatOnLifecycle
 import com.sopt.now.databinding.FragmentMyPageBinding
+import com.sopt.now.ui.myPage.viewModel.MyPageViewModel
+import kotlinx.coroutines.launch
 
-class MyPageFragment(
-    private val id: String,
-    private val pw: String,
-    private val nickname: String,
-    private val mbti: String,
-) : Fragment() {
+class MyPageFragment : Fragment() {
     private var _binding: FragmentMyPageBinding? = null
     private val binding
         get() = requireNotNull(_binding) {
             "바인딩 객체 미생성"
         }
 
+    private val viewModel by viewModels<MyPageViewModel>()
 
     override fun onCreateView(
         inflater: LayoutInflater,
@@ -32,21 +34,25 @@ class MyPageFragment(
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
-        setMainProfile(id, pw, nickname, mbti)
-
-    }
-
-    private fun setMainProfile(id: String, pw: String, nickname: String, mbti: String) {
-        with(binding) {
-            tvMyId.text = id
-            tvMyPw.text = pw
-            tvMyNickname.text = nickname
-            tvMyMbti.text = mbti
-        }
+        setCollect()
     }
 
     override fun onDestroy() {
         super.onDestroy()
         _binding = null
     }
+
+    private fun setCollect() {
+        lifecycleScope.launch {
+            repeatOnLifecycle(Lifecycle.State.STARTED) {
+                viewModel.infoState.collect { info ->
+                    with(binding) {
+                        tvMyId.text = info.data.authenticationId
+                        tvMyNickname.text = info.data.nickname
+                        tvMyPhoneNumber.text = info.data.phone
+                    }
+                }
+            }
+        }
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/ui/myPage/viewModel/MyPageViewModel.kt b/app/src/main/java/com/sopt/now/ui/myPage/viewModel/MyPageViewModel.kt
new file mode 100644
index 0000000..9b55f15
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/ui/myPage/viewModel/MyPageViewModel.kt
@@ -0,0 +1,51 @@
+package com.sopt.now.ui.myPage.viewModel
+
+import androidx.lifecycle.ViewModel
+import com.sopt.now.data.model.ResponseInfoDto
+import com.sopt.now.data.model.UserInfo
+import com.sopt.now.data.module.ServicePool
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+import retrofit2.Call
+import retrofit2.Callback
+import retrofit2.Response
+
+class MyPageViewModel : ViewModel() {
+    private val authService by lazy { ServicePool.authService }
+
+    private val _infoState =
+        MutableStateFlow(
+            ResponseInfoDto(
+                code = 0,
+                message = "",
+                data = UserInfo(authenticationId = "", nickname = "", phone = "")
+            )
+        )
+    val infoState = _infoState.asStateFlow()
+
+    init {
+        fetchInfo()
+    }
+
+    private fun fetchInfo() {
+        authService.memberInfo().enqueue(object : Callback<ResponseInfoDto> {
+            override fun onResponse(
+                call: Call<ResponseInfoDto>,
+                response: Response<ResponseInfoDto>,
+            ) {
+                if (response.isSuccessful) {
+                    val data = response.body()
+                    if (data != null) {
+                        _infoState.update {
+                            data
+                        }
+                    }
+                }
+            }
+
+            override fun onFailure(call: Call<ResponseInfoDto>, t: Throwable) {
+            }
+        })
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/ui/signIn/SignInActivity.kt b/app/src/main/java/com/sopt/now/ui/signIn/SignInActivity.kt
new file mode 100644
index 0000000..7658515
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/ui/signIn/SignInActivity.kt
@@ -0,0 +1,99 @@
+package com.sopt.now.ui.signIn
+
+import android.content.Intent
+import android.os.Bundle
+import android.view.MotionEvent
+import android.view.inputmethod.InputMethodManager
+import android.widget.Toast
+import androidx.activity.viewModels
+import androidx.appcompat.app.AppCompatActivity
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.lifecycleScope
+import androidx.lifecycle.repeatOnLifecycle
+import com.sopt.now.data.model.RequestSignInDto
+import com.sopt.now.databinding.ActivityLoginBinding
+import com.sopt.now.ui.main.MainActivity
+import com.sopt.now.ui.signIn.viewModel.SignInViewModel
+import com.sopt.now.ui.signUp.SignUpActivity
+import kotlinx.coroutines.launch
+
+class SignInActivity : AppCompatActivity() {
+    private val binding by lazy { ActivityLoginBinding.inflate(layoutInflater) }
+    private val viewModel by viewModels<SignInViewModel>()
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(binding.root)
+
+        setCollect()
+        setLoginButtonClickListeners()
+        setSignUpButtonClickListeners()
+    }
+
+    override fun dispatchTouchEvent(ev: MotionEvent): Boolean {
+        hideKeyboard()
+        return super.dispatchTouchEvent(ev)
+    }
+
+    private fun setCollect() {
+        lifecycleScope.launch {
+            repeatOnLifecycle(Lifecycle.State.STARTED) {
+                viewModel.signInState.collect { signInState ->
+                    if (signInState.message.isNotBlank()) {
+                        showToastMessage(signInState.message)
+                        if (signInState.isSuccess) {
+                            moveToMain()
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    private fun getSignInRequestDto(): RequestSignInDto {
+        val id = binding.edtSignInId.text.toString()
+        val pw = binding.edtSignInPw.text.toString()
+
+        return RequestSignInDto(
+            authenticationId = id,
+            password = pw,
+        )
+    }
+
+    private fun setLoginButtonClickListeners() {
+        binding.btnLogin.setOnClickListener {
+            viewModel.signIn(getSignInRequestDto())
+        }
+    }
+
+    private fun setSignUpButtonClickListeners() {
+        binding.btnSignUp.setOnClickListener {
+            moveToSignUp()
+        }
+    }
+
+
+    private fun hideKeyboard() {
+        val imm = getSystemService(INPUT_METHOD_SERVICE) as InputMethodManager
+        imm.hideSoftInputFromWindow(currentFocus?.windowToken, 0)
+    }
+
+
+    private fun moveToSignUp() {
+        val intent = Intent(this, SignUpActivity::class.java)
+        startActivity(intent)
+    }
+
+    private fun moveToMain() {
+        val intent = Intent(this, MainActivity::class.java)
+        startActivity(intent)
+    }
+
+    private fun showToastMessage(text: String = "") {
+        Toast.makeText(
+            this,
+            text,
+            Toast.LENGTH_SHORT
+        ).show()
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/ui/signIn/viewModel/SignInViewModel.kt b/app/src/main/java/com/sopt/now/ui/signIn/viewModel/SignInViewModel.kt
new file mode 100644
index 0000000..7536515
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/ui/signIn/viewModel/SignInViewModel.kt
@@ -0,0 +1,54 @@
+package com.sopt.now.ui.signIn.viewModel
+
+import androidx.lifecycle.ViewModel
+import com.sopt.now.data.model.RequestSignInDto
+import com.sopt.now.data.model.ResponseSignInDto
+import com.sopt.now.data.model.SignInState
+import com.sopt.now.data.module.ServicePool
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+import retrofit2.Call
+import retrofit2.Callback
+import retrofit2.Response
+
+class SignInViewModel : ViewModel() {
+    private val authService by lazy { ServicePool.authService }
+
+    private val _signInState = MutableStateFlow(SignInState(isSuccess = false, message = ""))
+    val signInState = _signInState.asStateFlow()
+
+    fun signIn(request: RequestSignInDto) {
+        authService.signIn(request).enqueue(
+            object : Callback<ResponseSignInDto> {
+                override fun onResponse(
+                    call: Call<ResponseSignInDto>,
+                    response: Response<ResponseSignInDto>,
+                ) {
+                    if (response.isSuccessful) {
+                        val userId = response.headers()["location"]
+
+                        _signInState.update {
+                            SignInState(
+                                isSuccess = true,
+                                message = "유저 아이디는 $userId"
+                            )
+                        }
+                    } else {
+                        val error = response.code()
+                        _signInState.update {
+                            SignInState(
+                                isSuccess = false,
+                                message = "로그인 실패 : $error"
+                            )
+                        }
+                    }
+                }
+
+                override fun onFailure(call: Call<ResponseSignInDto>, t: Throwable) {
+                    _signInState.update { SignInState(isSuccess = false, message = "서버 에러") }
+                }
+            }
+        )
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/ui/signUp/SignUpActivity.kt b/app/src/main/java/com/sopt/now/ui/signUp/SignUpActivity.kt
index 1d780bf..1cdbbd4 100644
--- a/app/src/main/java/com/sopt/now/ui/signUp/SignUpActivity.kt
+++ b/app/src/main/java/com/sopt/now/ui/signUp/SignUpActivity.kt
@@ -4,26 +4,28 @@ import android.os.Bundle
 import android.view.MotionEvent
 import android.view.inputmethod.InputMethodManager
 import android.widget.Toast
+import androidx.activity.viewModels
 import androidx.appcompat.app.AppCompatActivity
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.lifecycleScope
+import androidx.lifecycle.repeatOnLifecycle
+import com.sopt.now.R
+import com.sopt.now.data.model.RequestSignUpDto
 import com.sopt.now.databinding.ActivitySignUpBinding
+import com.sopt.now.ui.signUp.viewModel.SignUpViewModel
+import kotlinx.coroutines.launch
 
 class SignUpActivity : AppCompatActivity() {
-    companion object {
-        const val MIN_LENGTH_LOGIN = 6
-        const val MAX_LENGTH_LOGIN = 10
-        const val MIN_LENGTH_PASSWORD = 8
-        const val MAX_LENGTH_PASSWORD = 12
-        const val MBTI_LENGTH = 4
-    }
 
-    private lateinit var binding: ActivitySignUpBinding
+    private val binding by lazy { ActivitySignUpBinding.inflate(layoutInflater) }
+    private val viewModel by viewModels<SignUpViewModel>()
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        binding = ActivitySignUpBinding.inflate(layoutInflater)
         setContentView(binding.root)
 
         setSignUpButton()
+        setCollect()
     }
 
     override fun dispatchTouchEvent(ev: MotionEvent): Boolean {
@@ -38,16 +40,42 @@ class SignUpActivity : AppCompatActivity() {
 
     private fun setSignUpButton() {
         binding.btnSignUp.setOnClickListener {
-            if (isInputValid()) {
-                handleValidInput()
-            } else {
-                showToastMessage("회원 정보를 모두 입력해주세요.")
+            when {
+                isInputValid() -> viewModel.signUp(getSignUpRequestDto())
+                else -> showToastMessage(R.string.toast_sign_up_fail)
             }
         }
     }
 
+    private fun setCollect() {
+        lifecycleScope.launch {
+            repeatOnLifecycle(Lifecycle.State.STARTED) {
+                viewModel.signUpState.collect { signUpState ->
+                    if (signUpState.message.isNotBlank()) {
+                        if (signUpState.isSuccess) {
+                            handleValidInput()
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    private fun getSignUpRequestDto(): RequestSignUpDto {
+        val id = binding.edtSignUpId.text.toString()
+        val password = binding.edtSignUpPw.text.toString()
+        val nickname = binding.edtSignUpNickname.text.toString()
+        val phoneNumber = binding.edtSignUpPhoneNumber.text.toString()
+        return RequestSignUpDto(
+            authenticationId = id,
+            password = password,
+            nickname = nickname,
+            phone = phoneNumber
+        )
+    }
+
     private fun isInputValid(): Boolean {
-        return isIdValid() && isPwValid() && isNicknameValid() && isMbtiValid()
+        return isIdValid() && isPwValid() && isNicknameValid() && isPhoneNumberValid()
     }
 
     private fun isIdValid(): Boolean {
@@ -57,7 +85,7 @@ class SignUpActivity : AppCompatActivity() {
 
     private fun isPwValid(): Boolean {
         val pwText = binding.edtSignUpPw.text.toString()
-        return pwText.isNotBlank() && pwText.length in MIN_LENGTH_PASSWORD..MAX_LENGTH_PASSWORD
+        return pwText.isNotBlank() && pwText.length >= MIN_LENGTH_PASSWORD
     }
 
     private fun isNicknameValid(): Boolean {
@@ -65,26 +93,23 @@ class SignUpActivity : AppCompatActivity() {
         return nicknameText.isNotBlank() && !nicknameText.contains(" ")
     }
 
-    private fun isMbtiValid(): Boolean {
-        val mbtiText = binding.edtSignUpMbti.text.toString()
-        return mbtiText.isNotBlank() && mbtiText.length == MBTI_LENGTH
+    private fun isPhoneNumberValid(): Boolean {
+        val phoneNumberText = binding.edtSignUpPhoneNumber.text.toString()
+        return phoneNumberText.isNotBlank()
     }
 
     private fun handleValidInput() {
-        showToastMessage("회원가입이 완료되었습니다.")
-
-        intent.apply {
-            putExtra("id", binding.edtSignUpId.text.toString())
-            putExtra("pw", binding.edtSignUpPw.text.toString())
-            putExtra("nickname", binding.edtSignUpNickname.text.toString())
-            putExtra("mbti", binding.edtSignUpMbti.text.toString())
-        }
-
-        setResult(RESULT_OK, intent)
+        showToastMessage(R.string.toast_sign_up_success)
         finish()
     }
 
-    private fun showToastMessage(text: String) {
+    private fun showToastMessage(text: Int) {
         Toast.makeText(this, text, Toast.LENGTH_SHORT).show()
     }
+
+    companion object {
+        const val MIN_LENGTH_LOGIN = 6
+        const val MAX_LENGTH_LOGIN = 10
+        const val MIN_LENGTH_PASSWORD = 8
+    }
 }
diff --git a/app/src/main/java/com/sopt/now/ui/signUp/viewModel/SignUpViewModel.kt b/app/src/main/java/com/sopt/now/ui/signUp/viewModel/SignUpViewModel.kt
new file mode 100644
index 0000000..e80cb59
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/ui/signUp/viewModel/SignUpViewModel.kt
@@ -0,0 +1,53 @@
+package com.sopt.now.ui.signUp.viewModel
+
+import androidx.lifecycle.ViewModel
+import com.sopt.now.data.model.RequestSignUpDto
+import com.sopt.now.data.model.ResponseSignUpDto
+import com.sopt.now.data.model.SignUpState
+import com.sopt.now.data.module.ServicePool
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+import retrofit2.Call
+import retrofit2.Callback
+import retrofit2.Response
+
+class SignUpViewModel : ViewModel() {
+    private val authService by lazy { ServicePool.authService }
+
+    private val _signUpState = MutableStateFlow(SignUpState(isSuccess = false, message = ""))
+    val signUpState = _signUpState.asStateFlow()
+
+    fun signUp(request: RequestSignUpDto) {
+        authService.signUp(request).enqueue(
+            object : Callback<ResponseSignUpDto> {
+                override fun onResponse(
+                    call: Call<ResponseSignUpDto>,
+                    response: Response<ResponseSignUpDto>,
+                ) {
+                    if (response.isSuccessful) {
+                        val userId = response.headers()["location"]
+                        _signUpState.update {
+                            SignUpState(
+                                isSuccess = true,
+                                message = "가입된 유저 아이디는 $userId"
+                            )
+                        }
+                    } else {
+                        val error = response.code()
+                        _signUpState.update {
+                            SignUpState(
+                                isSuccess = false,
+                                message = "회원가입 실패 : $error"
+                            )
+                        }
+                    }
+                }
+
+                override fun onFailure(call: Call<ResponseSignUpDto>, t: Throwable) {
+                    _signUpState.update { SignUpState(isSuccess = false, message = "서버 에러") }
+                }
+            },
+        )
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_login.xml b/app/src/main/res/layout/activity_login.xml
index 0ce195b..ffa6096 100644
--- a/app/src/main/res/layout/activity_login.xml
+++ b/app/src/main/res/layout/activity_login.xml
@@ -5,7 +5,7 @@
     android:id="@+id/main"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".ui.login.LoginActivity">
+    tools:context=".ui.signIn.SignInActivity">
 
 
     <TextView
@@ -29,7 +29,7 @@
         app:layout_constraintTop_toTopOf="parent">
 
         <TextView
-            android:id="@+id/tv_login_id_label"
+            android:id="@+id/tv_sign_in_id_label"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginStart="16dp"
@@ -39,7 +39,7 @@
             app:layout_constraintTop_toBottomOf="@+id/tv_login_title" />
 
         <EditText
-            android:id="@+id/edt_login_id"
+            android:id="@+id/edt_sign_in_id"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_marginStart="16dp"
@@ -64,7 +64,7 @@
         app:layout_constraintTop_toBottomOf="@+id/ll_id">
 
         <TextView
-            android:id="@+id/tv_login_pw_label"
+            android:id="@+id/tv_sign_in_pw_label"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginStart="16dp"
@@ -74,7 +74,7 @@
             app:layout_constraintTop_toBottomOf="@+id/edt_sign_up_pw" />
 
         <EditText
-            android:id="@+id/edt_login_pw"
+            android:id="@+id/edt_sign_in_pw"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_marginStart="16dp"
@@ -84,7 +84,7 @@
             android:inputType="textPassword"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@+id/tv_login_pw_label"
+            app:layout_constraintTop_toBottomOf="@+id/tv_sign_in_pw_label"
             android:autofillHints="" />
 
     </LinearLayout>
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 9eadf13..e3d3436 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -64,14 +64,14 @@
             android:text="@string/pw_label" />
 
         <TextView
-            android:id="@+id/tv_my_mbti"
+            android:id="@+id/tv_my_phone_number"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginStart="16dp"
             android:layout_marginTop="16dp"
             android:layout_marginEnd="16dp"
             android:layout_marginBottom="16dp"
-            android:text="@string/mbti_label" />
+            android:text="@string/phone_number_label" />
 
 
     </LinearLayout>
diff --git a/app/src/main/res/layout/activity_sign_up.xml b/app/src/main/res/layout/activity_sign_up.xml
index 3eeb1db..30c06d5 100644
--- a/app/src/main/res/layout/activity_sign_up.xml
+++ b/app/src/main/res/layout/activity_sign_up.xml
@@ -108,17 +108,17 @@
                 android:textSize="14sp" />
 
             <TextView
-                android:id="@+id/tv_sign_up_mbti_label"
+                android:id="@+id/tv_sign_up_phone_number_label"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_marginStart="16dp"
                 android:layout_marginTop="32dp"
                 android:layout_marginEnd="16dp"
-                android:text="@string/mbti_label"
+                android:text="@string/phone_number_label"
                 android:textSize="14sp" />
 
             <EditText
-                android:id="@+id/edt_sign_up_mbti"
+                android:id="@+id/edt_sign_up_phone_number"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_marginStart="16dp"
@@ -126,7 +126,7 @@
                 android:layout_marginEnd="16dp"
                 android:layout_marginBottom="16dp"
                 android:autofillHints=""
-                android:hint="@string/mbti_hint"
+                android:hint="@string/phone_number_hint"
                 android:inputType="text"
                 android:textSize="14sp" />
 
diff --git a/app/src/main/res/layout/fragment_my_page.xml b/app/src/main/res/layout/fragment_my_page.xml
index 151463d..5de1d86 100644
--- a/app/src/main/res/layout/fragment_my_page.xml
+++ b/app/src/main/res/layout/fragment_my_page.xml
@@ -16,14 +16,14 @@
 
         <ImageView
             android:id="@+id/iv_main_profile"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
+            android:layout_width="128dp"
+            android:layout_height="128dp"
             android:layout_marginStart="16dp"
             android:layout_marginTop="16dp"
             android:layout_marginEnd="16dp"
             android:layout_marginBottom="16dp"
             android:importantForAccessibility="no"
-            android:src="@drawable/ic_launcher_background"
+            android:src="@drawable/img_arin"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="parent" />
 
@@ -54,24 +54,14 @@
             android:text="@string/id_label" />
 
         <TextView
-            android:id="@+id/tv_my_pw"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_marginStart="16dp"
-            android:layout_marginTop="16dp"
-            android:layout_marginEnd="16dp"
-            android:layout_marginBottom="16dp"
-            android:text="@string/pw_label" />
-
-        <TextView
-            android:id="@+id/tv_my_mbti"
+            android:id="@+id/tv_my_phone_number"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginStart="16dp"
             android:layout_marginTop="16dp"
             android:layout_marginEnd="16dp"
             android:layout_marginBottom="16dp"
-            android:text="@string/mbti_label" />
+            android:text="@string/phone_number_label" />
 
     </LinearLayout>
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 978087c..e270d75 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -14,8 +14,8 @@
     <string name="sign_up_title"><b>SIGN UP</b></string>
     <string name="nickname_label">닉네임</string>
     <string name="nickname_hint">닉네임을 입력해주세요</string>
-    <string name="mbti_label">MBTI</string>
-    <string name="mbti_hint">MBTI를 입력해주세요</string>
+    <string name="phone_number_label">전화번호</string>
+    <string name="phone_number_hint">전화번호를 입력해주세요</string>
 
     <!--    bottom navigation-->
     <string name="menu_home">홈</string>
@@ -26,4 +26,7 @@
     <string name="home_friend_name">이름</string>
     <string name="home_friend_description">소개</string>
 
+    <!--    toast message-->
+    <string name="toast_sign_up_fail">모든 정보를 입력해주세요.</string>
+    <string name="toast_sign_up_success">회원가입이 완료되었습니다.</string>
 </resources>
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index be6601c..4c76592 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("org.jetbrains.kotlin.plugin.serialization") version "1.9.20" apply false
 }
\ No newline at end of file