diff --git a/src/main/kotlin/dev/usbharu/hideout/Application.kt b/src/main/kotlin/dev/usbharu/hideout/Application.kt
index 0d19054d..d711ea21 100644
--- a/src/main/kotlin/dev/usbharu/hideout/Application.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/Application.kt
@@ -14,14 +14,13 @@ import dev.usbharu.hideout.domain.model.job.ReceiveFollowJob
 import dev.usbharu.hideout.plugins.*
 import dev.usbharu.hideout.query.FollowerQueryService
 import dev.usbharu.hideout.query.UserQueryService
-import dev.usbharu.hideout.repository.IUserRepository
 import dev.usbharu.hideout.routing.register
 import dev.usbharu.hideout.service.activitypub.ActivityPubService
 import dev.usbharu.hideout.service.activitypub.ActivityPubUserService
 import dev.usbharu.hideout.service.api.IPostApiService
 import dev.usbharu.hideout.service.api.IUserApiService
+import dev.usbharu.hideout.service.api.UserAuthApiService
 import dev.usbharu.hideout.service.auth.HttpSignatureVerifyService
-import dev.usbharu.hideout.service.auth.IJwtService
 import dev.usbharu.hideout.service.core.IMetaService
 import dev.usbharu.hideout.service.core.IServerInitialiseService
 import dev.usbharu.hideout.service.core.IdGenerateService
@@ -29,7 +28,6 @@ import dev.usbharu.hideout.service.core.TwitterSnowflakeIdGenerateService
 import dev.usbharu.hideout.service.job.JobQueueParentService
 import dev.usbharu.hideout.service.job.KJobJobQueueParentService
 import dev.usbharu.hideout.service.reaction.IReactionService
-import dev.usbharu.hideout.service.user.IUserAuthService
 import dev.usbharu.hideout.service.user.IUserService
 import dev.usbharu.kjob.exposed.ExposedKJob
 import io.ktor.client.*
@@ -97,6 +95,7 @@ fun Application.parent() {
         }
     }
     configureKoin(module, HideoutModule().module)
+    configureStatusPages()
     runBlocking {
         inject<IServerInitialiseService>().value.init()
     }
@@ -105,7 +104,7 @@ fun Application.parent() {
     configureStaticRouting()
     configureMonitoring()
     configureSerialization()
-    register(inject<IUserService>().value)
+    register(inject<IUserApiService>().value)
     configureSecurity(
 
         inject<JwkProvider>().value,
@@ -119,11 +118,9 @@ fun Application.parent() {
         postService = inject<IPostApiService>().value,
         userApiService = inject<IUserApiService>().value,
         reactionService = inject<IReactionService>().value,
-        userAuthService = inject<IUserAuthService>().value,
-        userRepository = inject<IUserRepository>().value,
-        jwtService = inject<IJwtService>().value,
         userQueryService = inject<UserQueryService>().value,
-        followerQueryService = inject<FollowerQueryService>().value
+        followerQueryService = inject<FollowerQueryService>().value,
+        userAuthApiService = inject<UserAuthApiService>().value
     )
 }
 
diff --git a/src/main/kotlin/dev/usbharu/hideout/exception/InvalidUsernameOrPasswordException.kt b/src/main/kotlin/dev/usbharu/hideout/exception/InvalidUsernameOrPasswordException.kt
new file mode 100644
index 00000000..1aa9c789
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/exception/InvalidUsernameOrPasswordException.kt
@@ -0,0 +1,14 @@
+package dev.usbharu.hideout.exception
+
+class InvalidUsernameOrPasswordException : Exception {
+    constructor() : super()
+    constructor(message: String?) : super(message)
+    constructor(message: String?, cause: Throwable?) : super(message, cause)
+    constructor(cause: Throwable?) : super(cause)
+    constructor(message: String?, cause: Throwable?, enableSuppression: Boolean, writableStackTrace: Boolean) : super(
+        message,
+        cause,
+        enableSuppression,
+        writableStackTrace
+    )
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/exception/UsernameAlreadyExistException.kt b/src/main/kotlin/dev/usbharu/hideout/exception/UsernameAlreadyExistException.kt
new file mode 100644
index 00000000..c1791950
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/exception/UsernameAlreadyExistException.kt
@@ -0,0 +1,14 @@
+package dev.usbharu.hideout.exception
+
+class UsernameAlreadyExistException : Exception {
+    constructor() : super()
+    constructor(message: String?) : super(message)
+    constructor(message: String?, cause: Throwable?) : super(message, cause)
+    constructor(cause: Throwable?) : super(cause)
+    constructor(message: String?, cause: Throwable?, enableSuppression: Boolean, writableStackTrace: Boolean) : super(
+        message,
+        cause,
+        enableSuppression,
+        writableStackTrace
+    )
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/plugins/Routing.kt b/src/main/kotlin/dev/usbharu/hideout/plugins/Routing.kt
index ca62091c..23e59607 100644
--- a/src/main/kotlin/dev/usbharu/hideout/plugins/Routing.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/plugins/Routing.kt
@@ -2,7 +2,6 @@ package dev.usbharu.hideout.plugins
 
 import dev.usbharu.hideout.query.FollowerQueryService
 import dev.usbharu.hideout.query.UserQueryService
-import dev.usbharu.hideout.repository.IUserRepository
 import dev.usbharu.hideout.routing.activitypub.inbox
 import dev.usbharu.hideout.routing.activitypub.outbox
 import dev.usbharu.hideout.routing.activitypub.usersAP
@@ -14,10 +13,9 @@ import dev.usbharu.hideout.service.activitypub.ActivityPubService
 import dev.usbharu.hideout.service.activitypub.ActivityPubUserService
 import dev.usbharu.hideout.service.api.IPostApiService
 import dev.usbharu.hideout.service.api.IUserApiService
+import dev.usbharu.hideout.service.api.UserAuthApiService
 import dev.usbharu.hideout.service.auth.HttpSignatureVerifyService
-import dev.usbharu.hideout.service.auth.IJwtService
 import dev.usbharu.hideout.service.reaction.IReactionService
-import dev.usbharu.hideout.service.user.IUserAuthService
 import dev.usbharu.hideout.service.user.IUserService
 import io.ktor.server.application.*
 import io.ktor.server.plugins.autohead.*
@@ -32,11 +30,9 @@ fun Application.configureRouting(
     postService: IPostApiService,
     userApiService: IUserApiService,
     reactionService: IReactionService,
-    userAuthService: IUserAuthService,
-    userRepository: IUserRepository,
-    jwtService: IJwtService,
     userQueryService: UserQueryService,
-    followerQueryService: FollowerQueryService
+    followerQueryService: FollowerQueryService,
+    userAuthApiService: UserAuthApiService
 ) {
     install(AutoHeadResponse)
     routing {
@@ -47,7 +43,7 @@ fun Application.configureRouting(
         route("/api/internal/v1") {
             posts(postService, reactionService)
             users(userService, userApiService)
-            auth(userAuthService, jwtService, userQueryService)
+            auth(userAuthApiService)
         }
     }
 }
diff --git a/src/main/kotlin/dev/usbharu/hideout/plugins/StatusPages.kt b/src/main/kotlin/dev/usbharu/hideout/plugins/StatusPages.kt
index 67ffdb1b..92eea7af 100644
--- a/src/main/kotlin/dev/usbharu/hideout/plugins/StatusPages.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/plugins/StatusPages.kt
@@ -1,5 +1,6 @@
 package dev.usbharu.hideout.plugins
 
+import dev.usbharu.hideout.exception.InvalidUsernameOrPasswordException
 import io.ktor.http.*
 import io.ktor.server.application.*
 import io.ktor.server.plugins.statuspages.*
@@ -10,8 +11,12 @@ fun Application.configureStatusPages() {
         exception<IllegalArgumentException> { call, cause ->
             call.respondText(text = "400: $cause", status = HttpStatusCode.BadRequest)
         }
+        exception<InvalidUsernameOrPasswordException> { call, _ ->
+            call.respond(401)
+        }
         exception<Throwable> { call, cause ->
-            call.respondText(text = "500: $cause", status = HttpStatusCode.InternalServerError)
+            call.respondText(text = "500: ${cause.stackTraceToString()}", status = HttpStatusCode.InternalServerError)
+            cause.printStackTrace()
         }
     }
 }
diff --git a/src/main/kotlin/dev/usbharu/hideout/query/UserQueryService.kt b/src/main/kotlin/dev/usbharu/hideout/query/UserQueryService.kt
index eec057f4..6b7f7db6 100644
--- a/src/main/kotlin/dev/usbharu/hideout/query/UserQueryService.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/query/UserQueryService.kt
@@ -9,4 +9,5 @@ interface UserQueryService {
     suspend fun findByNameAndDomain(name: String, domain: String): User
     suspend fun findByUrl(url: String): User
     suspend fun findByIds(ids: List<Long>): List<User>
+    suspend fun existByNameAndDomain(name: String, domain: String): Boolean
 }
diff --git a/src/main/kotlin/dev/usbharu/hideout/query/UserQueryServiceImpl.kt b/src/main/kotlin/dev/usbharu/hideout/query/UserQueryServiceImpl.kt
index e96dea20..3e1e80fe 100644
--- a/src/main/kotlin/dev/usbharu/hideout/query/UserQueryServiceImpl.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/query/UserQueryServiceImpl.kt
@@ -24,4 +24,8 @@ class UserQueryServiceImpl : UserQueryService {
 
     override suspend fun findByIds(ids: List<Long>): List<User> =
         Users.select { Users.id inList ids }.map { it.toUser() }
+
+    override suspend fun existByNameAndDomain(name: String, domain: String): Boolean {
+        return Users.select { Users.name eq name and (Users.domain eq domain) }.empty().not()
+    }
 }
diff --git a/src/main/kotlin/dev/usbharu/hideout/routing/RegisterRouting.kt b/src/main/kotlin/dev/usbharu/hideout/routing/RegisterRouting.kt
index ced130c3..2e01c939 100644
--- a/src/main/kotlin/dev/usbharu/hideout/routing/RegisterRouting.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/routing/RegisterRouting.kt
@@ -1,7 +1,6 @@
 package dev.usbharu.hideout.routing
 
-import dev.usbharu.hideout.domain.model.hideout.dto.UserCreateDto
-import dev.usbharu.hideout.service.user.IUserService
+import dev.usbharu.hideout.service.api.IUserApiService
 import io.ktor.http.*
 import io.ktor.server.application.*
 import io.ktor.server.auth.*
@@ -9,7 +8,7 @@ import io.ktor.server.request.*
 import io.ktor.server.response.*
 import io.ktor.server.routing.*
 
-fun Application.register(userService: IUserService) {
+fun Application.register(userApiService: IUserApiService) {
     routing {
         get("/register") {
             val principal = call.principal<UserIdPrincipal>()
@@ -37,10 +36,7 @@ fun Application.register(userService: IUserService) {
             val parameters = call.receiveParameters()
             val password = parameters["password"] ?: return@post call.respondRedirect("/register")
             val username = parameters["username"] ?: return@post call.respondRedirect("/register")
-            if (userService.usernameAlreadyUse(username)) {
-                return@post call.respondRedirect("/register")
-            }
-            userService.createLocalUser(UserCreateDto(username, username, "", password))
+            userApiService.createUser(username, password)
             call.respondRedirect("/users/$username")
         }
     }
diff --git a/src/main/kotlin/dev/usbharu/hideout/routing/activitypub/UserRouting.kt b/src/main/kotlin/dev/usbharu/hideout/routing/activitypub/UserRouting.kt
index df0d6d37..f381472b 100644
--- a/src/main/kotlin/dev/usbharu/hideout/routing/activitypub/UserRouting.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/routing/activitypub/UserRouting.kt
@@ -13,6 +13,7 @@ import io.ktor.server.application.*
 import io.ktor.server.request.*
 import io.ktor.server.response.*
 import io.ktor.server.routing.*
+import org.jetbrains.exposed.sql.transactions.experimental.newSuspendedTransaction
 
 fun Routing.usersAP(
     activityPubUserService: ActivityPubUserService,
@@ -32,11 +33,18 @@ fun Routing.usersAP(
             )
         }
         get {
-            val userEntity = userQueryService.findByNameAndDomain(
-                call.parameters["name"] ?: throw ParameterNotExistException("Parameter(name='name') does not exist."),
-                Config.configData.domain
-            )
-            call.respondText(userEntity.toString() + "\n" + followerQueryService.findFollowersById(userEntity.id))
+
+
+            // TODO: 暫定処置なので治す
+            newSuspendedTransaction {
+
+                val userEntity = userQueryService.findByNameAndDomain(
+                    call.parameters["name"]
+                        ?: throw ParameterNotExistException("Parameter(name='name') does not exist."),
+                    Config.configData.domain
+                )
+                call.respondText(userEntity.toString() + "\n" + followerQueryService.findFollowersById(userEntity.id))
+            }
         }
     }
 }
@@ -46,7 +54,7 @@ class ContentTypeRouteSelector(private vararg val contentType: ContentType) : Ro
         context.call.application.log.debug("Accept: ${context.call.request.accept()}")
         val requestContentType = context.call.request.accept() ?: return RouteSelectorEvaluation.FailedParameter
         return if (requestContentType.split(",")
-            .any { contentType.any { contentType -> contentType.match(it) } }
+                .any { contentType.any { contentType -> contentType.match(it) } }
         ) {
             RouteSelectorEvaluation.Constant
         } else {
diff --git a/src/main/kotlin/dev/usbharu/hideout/routing/api/internal/v1/Auth.kt b/src/main/kotlin/dev/usbharu/hideout/routing/api/internal/v1/Auth.kt
index bd0d280a..610d39b4 100644
--- a/src/main/kotlin/dev/usbharu/hideout/routing/api/internal/v1/Auth.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/routing/api/internal/v1/Auth.kt
@@ -1,13 +1,9 @@
 package dev.usbharu.hideout.routing.api.internal.v1
 
-import dev.usbharu.hideout.config.Config
 import dev.usbharu.hideout.domain.model.hideout.form.RefreshToken
 import dev.usbharu.hideout.domain.model.hideout.form.UserLogin
 import dev.usbharu.hideout.plugins.TOKEN_AUTH
-import dev.usbharu.hideout.query.UserQueryService
-import dev.usbharu.hideout.service.auth.IJwtService
-import dev.usbharu.hideout.service.user.IUserAuthService
-import io.ktor.http.*
+import dev.usbharu.hideout.service.api.UserAuthApiService
 import io.ktor.server.application.*
 import io.ktor.server.auth.*
 import io.ktor.server.auth.jwt.*
@@ -15,26 +11,15 @@ import io.ktor.server.request.*
 import io.ktor.server.response.*
 import io.ktor.server.routing.*
 
-fun Route.auth(
-    userAuthService: IUserAuthService,
-    jwtService: IJwtService,
-    userQueryService: UserQueryService
-) {
+fun Route.auth(userAuthApiService: UserAuthApiService) {
     post("/login") {
         val loginUser = call.receive<UserLogin>()
-        val check = userAuthService.verifyAccount(loginUser.username, loginUser.password)
-        if (check.not()) {
-            return@post call.respond(HttpStatusCode.Unauthorized)
-        }
-
-        val user = userQueryService.findByNameAndDomain(loginUser.username, Config.configData.domain)
-
-        return@post call.respond(jwtService.createToken(user))
+        return@post call.respond(userAuthApiService.login(loginUser.username, loginUser.password))
     }
 
     post("/refresh-token") {
         val refreshToken = call.receive<RefreshToken>()
-        return@post call.respond(jwtService.refreshToken(refreshToken))
+        return@post call.respond(userAuthApiService.refreshToken(refreshToken))
     }
     authenticate(TOKEN_AUTH) {
         get("/auth-check") {
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/api/IUserApiService.kt b/src/main/kotlin/dev/usbharu/hideout/service/api/IUserApiService.kt
index 580d4115..7d902de3 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/api/IUserApiService.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/api/IUserApiService.kt
@@ -19,4 +19,6 @@ interface IUserApiService {
     suspend fun findFollowersByAcct(acct: Acct): List<UserResponse>
 
     suspend fun findFollowingsByAcct(acct: Acct): List<UserResponse>
+
+    suspend fun createUser(username: String, password: String): UserResponse
 }
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/api/PostApiServiceImpl.kt b/src/main/kotlin/dev/usbharu/hideout/service/api/PostApiServiceImpl.kt
index e04bcd67..3a5cdb0a 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/api/PostApiServiceImpl.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/api/PostApiServiceImpl.kt
@@ -20,18 +20,20 @@ class PostApiServiceImpl(
     private val postResponseQueryService: PostResponseQueryService
 ) : IPostApiService {
     override suspend fun createPost(postForm: FormPost, userId: Long): PostResponse {
-        val createdPost = postService.createLocal(
-            PostCreateDto(
-                text = postForm.text,
-                overview = postForm.overview,
-                visibility = postForm.visibility,
-                repostId = postForm.repostId,
-                repolyId = postForm.replyId,
-                userId = userId
+        return newSuspendedTransaction {
+            val createdPost = postService.createLocal(
+                PostCreateDto(
+                    text = postForm.text,
+                    overview = postForm.overview,
+                    visibility = postForm.visibility,
+                    repostId = postForm.repostId,
+                    repolyId = postForm.replyId,
+                    userId = userId
+                )
             )
-        )
-        val creator = userRepository.findById(userId)
-        return PostResponse.from(createdPost, creator!!)
+            val creator = userRepository.findById(userId)
+            PostResponse.from(createdPost, creator!!)
+        }
     }
 
     @Suppress("InjectDispatcher")
@@ -47,8 +49,16 @@ class PostApiServiceImpl(
         maxId: Long?,
         limit: Int?,
         userId: Long?
-    ): List<PostResponse> =
-        postResponseQueryService.findAll(since?.toEpochMilli(), until?.toEpochMilli(), minId, maxId, limit, userId)
+    ): List<PostResponse> = newSuspendedTransaction {
+        postResponseQueryService.findAll(
+            since?.toEpochMilli(),
+            until?.toEpochMilli(),
+            minId,
+            maxId,
+            limit,
+            userId
+        )
+    }
 
     override suspend fun getByUser(
         nameOrId: String,
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/api/UserApiServiceImpl.kt b/src/main/kotlin/dev/usbharu/hideout/service/api/UserApiServiceImpl.kt
index 70fc8bd3..37ac1890 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/api/UserApiServiceImpl.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/api/UserApiServiceImpl.kt
@@ -2,16 +2,21 @@ package dev.usbharu.hideout.service.api
 
 import dev.usbharu.hideout.config.Config
 import dev.usbharu.hideout.domain.model.Acct
+import dev.usbharu.hideout.domain.model.hideout.dto.UserCreateDto
 import dev.usbharu.hideout.domain.model.hideout.dto.UserResponse
+import dev.usbharu.hideout.exception.UsernameAlreadyExistException
 import dev.usbharu.hideout.query.FollowerQueryService
 import dev.usbharu.hideout.query.UserQueryService
+import dev.usbharu.hideout.service.user.IUserService
+import org.jetbrains.exposed.sql.transactions.experimental.newSuspendedTransaction
 import org.koin.core.annotation.Single
 import kotlin.math.min
 
 @Single
 class UserApiServiceImpl(
     private val userQueryService: UserQueryService,
-    private val followerQueryService: FollowerQueryService
+    private val followerQueryService: FollowerQueryService,
+    private val userService: IUserService
 ) : IUserApiService {
     override suspend fun findAll(limit: Int?, offset: Long): List<UserResponse> =
         userQueryService.findAll(min(limit ?: 100, 100), offset).map { UserResponse.from(it) }
@@ -37,4 +42,13 @@ class UserApiServiceImpl(
     override suspend fun findFollowingsByAcct(acct: Acct): List<UserResponse> =
         followerQueryService.findFollowingByNameAndDomain(acct.username, acct.domain ?: Config.configData.domain)
             .map { UserResponse.from(it) }
+
+    override suspend fun createUser(username: String, password: String): UserResponse {
+        return newSuspendedTransaction {
+            if (userQueryService.existByNameAndDomain(username, Config.configData.domain)) {
+                throw UsernameAlreadyExistException()
+            }
+            UserResponse.from(userService.createLocalUser(UserCreateDto(username, username, "", password)))
+        }
+    }
 }
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/api/UserAuthApiService.kt b/src/main/kotlin/dev/usbharu/hideout/service/api/UserAuthApiService.kt
new file mode 100644
index 00000000..0c8d35f5
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/service/api/UserAuthApiService.kt
@@ -0,0 +1,9 @@
+package dev.usbharu.hideout.service.api
+
+import dev.usbharu.hideout.domain.model.hideout.dto.JwtToken
+import dev.usbharu.hideout.domain.model.hideout.form.RefreshToken
+
+interface UserAuthApiService {
+    suspend fun login(username: String, password: String): JwtToken
+    suspend fun refreshToken(refreshToken: RefreshToken): JwtToken
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/api/UserAuthApiServiceImpl.kt b/src/main/kotlin/dev/usbharu/hideout/service/api/UserAuthApiServiceImpl.kt
new file mode 100644
index 00000000..06f87f3e
--- /dev/null
+++ b/src/main/kotlin/dev/usbharu/hideout/service/api/UserAuthApiServiceImpl.kt
@@ -0,0 +1,34 @@
+package dev.usbharu.hideout.service.api
+
+import dev.usbharu.hideout.config.Config
+import dev.usbharu.hideout.domain.model.hideout.dto.JwtToken
+import dev.usbharu.hideout.domain.model.hideout.form.RefreshToken
+import dev.usbharu.hideout.exception.InvalidUsernameOrPasswordException
+import dev.usbharu.hideout.query.UserQueryService
+import dev.usbharu.hideout.service.auth.IJwtService
+import dev.usbharu.hideout.service.user.UserAuthService
+import org.jetbrains.exposed.sql.transactions.experimental.newSuspendedTransaction
+import org.koin.core.annotation.Single
+
+@Single
+class UserAuthApiServiceImpl(
+    private val userAuthService: UserAuthService,
+    private val userQueryService: UserQueryService,
+    private val jwtService: IJwtService
+) : UserAuthApiService {
+    override suspend fun login(username: String, password: String): JwtToken {
+        return newSuspendedTransaction {
+            if (userAuthService.verifyAccount(username, password).not()) {
+                throw InvalidUsernameOrPasswordException()
+            }
+            val user = userQueryService.findByNameAndDomain(username, Config.configData.domain)
+            jwtService.createToken(user)
+        }
+    }
+
+    override suspend fun refreshToken(refreshToken: RefreshToken): JwtToken {
+        return newSuspendedTransaction {
+            jwtService.refreshToken(refreshToken)
+        }
+    }
+}
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/auth/JwtServiceImpl.kt b/src/main/kotlin/dev/usbharu/hideout/service/auth/JwtServiceImpl.kt
index 54195905..daf64a4e 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/auth/JwtServiceImpl.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/auth/JwtServiceImpl.kt
@@ -13,9 +13,7 @@ import dev.usbharu.hideout.query.UserQueryService
 import dev.usbharu.hideout.repository.IJwtRefreshTokenRepository
 import dev.usbharu.hideout.service.core.IMetaService
 import dev.usbharu.hideout.util.RsaUtil
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.async
+import kotlinx.coroutines.runBlocking
 import org.koin.core.annotation.Single
 import java.time.Instant
 import java.time.temporal.ChronoUnit
@@ -30,23 +28,16 @@ class JwtServiceImpl(
     private val refreshTokenQueryService: JwtRefreshTokenQueryService
 ) : IJwtService {
 
-    private val privateKey by lazy {
-        CoroutineScope(Dispatchers.IO).async {
-            RsaUtil.decodeRsaPrivateKey(metaService.getJwtMeta().privateKey)
-        }
+    private val privateKey = runBlocking {
+        RsaUtil.decodeRsaPrivateKey(metaService.getJwtMeta().privateKey)
     }
 
-    private val publicKey by lazy {
-        CoroutineScope(Dispatchers.IO).async {
-            RsaUtil.decodeRsaPublicKey(metaService.getJwtMeta().publicKey)
-        }
+    private val publicKey = runBlocking {
+        RsaUtil.decodeRsaPublicKey(metaService.getJwtMeta().publicKey)
     }
 
-    private val keyId by lazy {
-        CoroutineScope(Dispatchers.IO).async {
-            metaService.getJwtMeta().kid
-        }
-    }
+    private val keyId = runBlocking { metaService.getJwtMeta().kid }
+
 
     @Suppress("MagicNumber")
     override suspend fun createToken(user: User): JwtToken {
@@ -54,10 +45,10 @@ class JwtServiceImpl(
         val token = JWT.create()
             .withAudience("${Config.configData.url}/users/${user.name}")
             .withIssuer(Config.configData.url)
-            .withKeyId(keyId.await().toString())
+            .withKeyId(keyId.toString())
             .withClaim("uid", user.id)
             .withExpiresAt(now.plus(30, ChronoUnit.MINUTES))
-            .sign(Algorithm.RSA256(publicKey.await(), privateKey.await()))
+            .sign(Algorithm.RSA256(publicKey, privateKey))
 
         val jwtRefreshToken = JwtRefreshToken(
             id = refreshTokenRepository.generateId(),
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/core/MetaServiceImpl.kt b/src/main/kotlin/dev/usbharu/hideout/service/core/MetaServiceImpl.kt
index 9e922312..ebd15efa 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/core/MetaServiceImpl.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/core/MetaServiceImpl.kt
@@ -4,13 +4,15 @@ import dev.usbharu.hideout.domain.model.hideout.entity.Jwt
 import dev.usbharu.hideout.domain.model.hideout.entity.Meta
 import dev.usbharu.hideout.exception.NotInitException
 import dev.usbharu.hideout.repository.IMetaRepository
+import org.jetbrains.exposed.sql.transactions.experimental.newSuspendedTransaction
 import org.koin.core.annotation.Single
 
 @Single
 class MetaServiceImpl(private val metaRepository: IMetaRepository) : IMetaService {
-    override suspend fun getMeta(): Meta = metaRepository.get() ?: throw NotInitException("Meta is null")
+    override suspend fun getMeta(): Meta =
+        newSuspendedTransaction { metaRepository.get() ?: throw NotInitException("Meta is null") }
 
-    override suspend fun updateMeta(meta: Meta) {
+    override suspend fun updateMeta(meta: Meta) = newSuspendedTransaction {
         metaRepository.save(meta)
     }
 
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/core/ServerInitialiseServiceImpl.kt b/src/main/kotlin/dev/usbharu/hideout/service/core/ServerInitialiseServiceImpl.kt
index ea9b5099..6e9db865 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/core/ServerInitialiseServiceImpl.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/core/ServerInitialiseServiceImpl.kt
@@ -4,6 +4,7 @@ import dev.usbharu.hideout.domain.model.hideout.entity.Jwt
 import dev.usbharu.hideout.domain.model.hideout.entity.Meta
 import dev.usbharu.hideout.repository.IMetaRepository
 import dev.usbharu.hideout.util.ServerUtil
+import org.jetbrains.exposed.sql.transactions.experimental.newSuspendedTransaction
 import org.koin.core.annotation.Single
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
@@ -16,18 +17,20 @@ class ServerInitialiseServiceImpl(private val metaRepository: IMetaRepository) :
     val logger: Logger = LoggerFactory.getLogger(ServerInitialiseServiceImpl::class.java)
 
     override suspend fun init() {
-        val savedMeta = metaRepository.get()
-        val implementationVersion = ServerUtil.getImplementationVersion()
-        if (wasInitialised(savedMeta).not()) {
-            logger.info("Start Initialise")
-            initialise(implementationVersion)
-            logger.info("Finish Initialise")
-            return
-        }
+        newSuspendedTransaction {
+            val savedMeta = metaRepository.get()
+            val implementationVersion = ServerUtil.getImplementationVersion()
+            if (wasInitialised(savedMeta).not()) {
+                logger.info("Start Initialise")
+                initialise(implementationVersion)
+                logger.info("Finish Initialise")
+                return@newSuspendedTransaction
+            }
 
-        if (isVersionChanged(requireNotNull(savedMeta))) {
-            logger.info("Version changed!! (${savedMeta.version} -> $implementationVersion)")
-            updateVersion(savedMeta, implementationVersion)
+            if (isVersionChanged(requireNotNull(savedMeta))) {
+                logger.info("Version changed!! (${savedMeta.version} -> $implementationVersion)")
+                updateVersion(savedMeta, implementationVersion)
+            }
         }
     }