diff --git a/adapters/out-persistence/src/main/kotlin/com/pokit/out/persistence/user/persist/UserEntity.kt b/adapters/out-persistence/src/main/kotlin/com/pokit/out/persistence/user/persist/UserEntity.kt
index e4552475..a34724b6 100644
--- a/adapters/out-persistence/src/main/kotlin/com/pokit/out/persistence/user/persist/UserEntity.kt
+++ b/adapters/out-persistence/src/main/kotlin/com/pokit/out/persistence/user/persist/UserEntity.kt
@@ -15,14 +15,14 @@ class UserEntity(
     val id: Long = 0L,
 
     @Column(name = "email")
-    val email: String,
+    val email: String = "EMAIL@EMAIL.COM",
 
     @Column(name = "role")
     @Enumerated(EnumType.STRING)
     val role: Role,
 
     @Column(name = "nickname")
-    var nickname: String = email,
+    var nickname: String = "NOT_REGISTERED",
 
     @Column(name = "auth_platform")
     @Enumerated(EnumType.STRING)
diff --git a/application/src/main/kotlin/com/pokit/auth/port/service/AuthService.kt b/application/src/main/kotlin/com/pokit/auth/port/service/AuthService.kt
index 3cecac09..12c5fc6d 100644
--- a/application/src/main/kotlin/com/pokit/auth/port/service/AuthService.kt
+++ b/application/src/main/kotlin/com/pokit/auth/port/service/AuthService.kt
@@ -65,7 +65,6 @@ class AuthService(
 
     private fun createUser(userInfo: UserInfo): User {
         val user = User(
-            email = userInfo.email!!, // 존재하지 않았던 유저면 이메일 항상 존재
             role = Role.USER,
             authPlatform = userInfo.authPlatform,
             sub = userInfo.sub
diff --git a/application/src/test/kotlin/com/pokit/auth/port/service/AuthServiceTest.kt b/application/src/test/kotlin/com/pokit/auth/port/service/AuthServiceTest.kt
index 982cb4de..7306eef6 100644
--- a/application/src/test/kotlin/com/pokit/auth/port/service/AuthServiceTest.kt
+++ b/application/src/test/kotlin/com/pokit/auth/port/service/AuthServiceTest.kt
@@ -35,7 +35,7 @@ class AuthServiceTest : BehaviorSpec({
 
         every { googleApiClient.getUserInfo(request.idToken) } returns userInfo
         every {
-            userPort.loadByEmailAndAuthPlatform(userInfo.email, AuthPlatform.of(request.authPlatform))
+            userPort.loadByEmailAndAuthPlatform(userInfo.email!!, AuthPlatform.of(request.authPlatform))
         } returns user
         every { userPort.loadById(user.id) } returns user
         every { tokenProvider.createToken(user.id) } returns token
diff --git a/domain/src/main/kotlin/com/pokit/user/model/User.kt b/domain/src/main/kotlin/com/pokit/user/model/User.kt
index 92ed9793..7b899ed1 100644
--- a/domain/src/main/kotlin/com/pokit/user/model/User.kt
+++ b/domain/src/main/kotlin/com/pokit/user/model/User.kt
@@ -7,9 +7,9 @@ import java.util.regex.Pattern
 
 data class User(
     val id: Long = 0L,
-    val email: String,
+    val email: String = "EMAIL@EMAIL.COM",
     val role: Role,
-    var nickName: String = email,
+    var nickName: String = "NOT_REGISTERED",
     val authPlatform: AuthPlatform,
     var registered: Boolean = false,
     var sub: String?