diff --git a/src/main/kotlin/dev/usbharu/hideout/repository/IUserRepository.kt b/src/main/kotlin/dev/usbharu/hideout/repository/IUserRepository.kt
index 73ac26a4..c8a0b1a3 100644
--- a/src/main/kotlin/dev/usbharu/hideout/repository/IUserRepository.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/repository/IUserRepository.kt
@@ -3,7 +3,7 @@ package dev.usbharu.hideout.repository
 import dev.usbharu.hideout.domain.model.User
 
 interface IUserRepository {
-    suspend fun create(user: User): User
+    suspend fun save(user: User): User
 
     suspend fun findById(id: Long): User?
 
@@ -17,7 +17,8 @@ interface IUserRepository {
 
     suspend fun findByUrls(urls: List<String>): List<User>
 
-    suspend fun update(userEntity: User)
+    @Deprecated("", ReplaceWith("save(userEntity)"))
+    suspend fun update(userEntity: User) = save(userEntity)
 
     suspend fun delete(id: Long)
 
diff --git a/src/main/kotlin/dev/usbharu/hideout/repository/UserRepository.kt b/src/main/kotlin/dev/usbharu/hideout/repository/UserRepository.kt
index 7e0487b1..a416ff5d 100644
--- a/src/main/kotlin/dev/usbharu/hideout/repository/UserRepository.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/repository/UserRepository.kt
@@ -1,15 +1,13 @@
 package dev.usbharu.hideout.repository
 
-import dev.usbharu.hideout.domain.model.*
+import dev.usbharu.hideout.domain.model.User
+import dev.usbharu.hideout.domain.model.UsersFollowers
 import kotlinx.coroutines.Dispatchers
 import org.jetbrains.exposed.sql.*
 import org.jetbrains.exposed.sql.SqlExpressionBuilder.eq
 import org.jetbrains.exposed.sql.transactions.experimental.newSuspendedTransaction
 import org.jetbrains.exposed.sql.transactions.transaction
 import java.time.Instant
-import java.time.LocalDateTime
-import java.time.ZoneId
-import java.time.ZoneOffset
 
 class UserRepository(private val database: Database) : IUserRepository {
     init {
@@ -21,12 +19,13 @@ class UserRepository(private val database: Database) : IUserRepository {
         }
     }
 
+    @Deprecated("", ReplaceWith("toUser()"))
     private fun ResultRow.toUserEntity(): User = toUser()
 
     suspend fun <T> query(block: suspend () -> T): T =
         newSuspendedTransaction(Dispatchers.IO) { block() }
 
-    override suspend fun create(user: User): User {
+    override suspend fun save(user: User): User {
         return query {
             Users.insert {
                 it[id] = user.id
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/impl/UserAuthService.kt b/src/main/kotlin/dev/usbharu/hideout/service/impl/UserAuthService.kt
index 08235238..0d217de1 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/impl/UserAuthService.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/impl/UserAuthService.kt
@@ -10,7 +10,6 @@ import java.security.*
 import java.security.interfaces.RSAPrivateKey
 import java.security.interfaces.RSAPublicKey
 import java.time.Instant
-import java.time.LocalDateTime
 import java.util.*
 
 class UserAuthService(
@@ -43,7 +42,7 @@ class UserAuthService(
             publicKey = "",
             createdAt = Instant.now(),
         )
-        val createdUser = userRepository.create(registerUser)
+        val createdUser = userRepository.save(registerUser)
 
         val keyPair = generateKeyPair()
         val privateKey = keyPair.private as RSAPrivateKey
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/impl/UserService.kt b/src/main/kotlin/dev/usbharu/hideout/service/impl/UserService.kt
index fcbc60cb..09af8fc4 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/impl/UserService.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/impl/UserService.kt
@@ -42,7 +42,7 @@ class UserService(private val userRepository: IUserRepository) {
     }
 
     suspend fun create(user: User): User {
-        return userRepository.create(user)
+        return userRepository.save(user)
     }
 
     suspend fun findFollowersById(id: Long): List<User> {
diff --git a/src/test/kotlin/dev/usbharu/hideout/plugins/ActivityPubKtTest.kt b/src/test/kotlin/dev/usbharu/hideout/plugins/ActivityPubKtTest.kt
index 87d91ca0..df9265f0 100644
--- a/src/test/kotlin/dev/usbharu/hideout/plugins/ActivityPubKtTest.kt
+++ b/src/test/kotlin/dev/usbharu/hideout/plugins/ActivityPubKtTest.kt
@@ -18,7 +18,7 @@ class ActivityPubKtTest {
     fun HttpSignTest(): Unit = runBlocking {
 
         val ktorKeyMap = KtorKeyMap(object : IUserRepository {
-            override suspend fun create(user: User): User {
+            override suspend fun save(user: User): User {
                 TODO("Not yet implemented")
             }
 
diff --git a/src/test/kotlin/dev/usbharu/hideout/plugins/KtorKeyMapTest.kt b/src/test/kotlin/dev/usbharu/hideout/plugins/KtorKeyMapTest.kt
index 204f6c8c..fd3ee6dd 100644
--- a/src/test/kotlin/dev/usbharu/hideout/plugins/KtorKeyMapTest.kt
+++ b/src/test/kotlin/dev/usbharu/hideout/plugins/KtorKeyMapTest.kt
@@ -13,7 +13,7 @@ class KtorKeyMapTest {
     @Test
     fun getPrivateKey() {
         val ktorKeyMap = KtorKeyMap(object : IUserRepository {
-            override suspend fun create(user: User): User {
+            override suspend fun save(user: User): User {
                 TODO("Not yet implemented")
             }
 
diff --git a/src/test/kotlin/dev/usbharu/hideout/repository/UserRepositoryTest.kt b/src/test/kotlin/dev/usbharu/hideout/repository/UserRepositoryTest.kt
index 12f9162e..4ddc8e9c 100644
--- a/src/test/kotlin/dev/usbharu/hideout/repository/UserRepositoryTest.kt
+++ b/src/test/kotlin/dev/usbharu/hideout/repository/UserRepositoryTest.kt
@@ -16,7 +16,6 @@ import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
 import java.time.Clock
 import java.time.Instant
-import java.time.LocalDateTime
 import java.time.ZoneId
 
 
@@ -45,7 +44,7 @@ class UserRepositoryTest {
     @Test
     fun `findFollowersById フォロワー一覧を取得`() = runTest {
         val userRepository = UserRepository(db)
-        val user = userRepository.create(
+        val user = userRepository.save(
             User(
                 id = 0L,
                 name = "test",
@@ -60,7 +59,7 @@ class UserRepositoryTest {
                 createdAt = Instant.now(Clock.tickMillis(ZoneId.systemDefault()))
             )
         )
-        val follower = userRepository.create(
+        val follower = userRepository.save(
             User(
                 id = 1L,
                 name = "follower",
@@ -75,7 +74,7 @@ class UserRepositoryTest {
                 createdAt = Instant.now(Clock.tickMillis(ZoneId.systemDefault()))
             )
         )
-        val follower2 = userRepository.create(
+        val follower2 = userRepository.save(
             User(
                 id = 3L,
                 name = "follower2",
@@ -101,7 +100,7 @@ class UserRepositoryTest {
     @Test
     fun `createFollower フォロワー追加`() = runTest {
         val userRepository = UserRepository(db)
-        val user = userRepository.create(
+        val user = userRepository.save(
             User(0L,
                 "test",
                 "example.com",
@@ -115,7 +114,7 @@ class UserRepositoryTest {
                 createdAt = Instant.now()
             )
         )
-        val follower = userRepository.create(
+        val follower = userRepository.save(
             User(1L,
                 "follower",
                 "follower.example.com",