diff --git a/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/commands/AddCommand.kt b/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/commands/AddCommand.kt
index 772de12..f9c0b16 100644
--- a/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/commands/AddCommand.kt
+++ b/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/commands/AddCommand.kt
@@ -5,6 +5,7 @@ import net.dv8tion.jda.api.events.interaction.command.SlashCommandInteractionEve
 import net.dv8tion.jda.api.interactions.commands.OptionType
 import net.dv8tion.jda.api.interactions.commands.build.Commands
 import net.dv8tion.jda.api.interactions.commands.build.OptionData
+import org.jetbrains.exposed.sql.transactions.transaction
 import org.slf4j.LoggerFactory
 import space.mori.chzzk_bot.chatbot.chzzk.ChzzkHandler
 import space.mori.chzzk_bot.chatbot.chzzk.Connector
@@ -39,8 +40,15 @@ object AddCommand : CommandInterface {
         }
 
         if (manager != null) {
-            user = manager.user
-            ManagerService.updateManager(user, event.user.idLong, event.user.effectiveName)
+            transaction {
+                user = manager.user
+            }
+            user?.let { ManagerService.updateManager(it, event.user.idLong, event.user.effectiveName) }
+        }
+
+        if (user == null) {
+            event.hook.sendMessage("에러가 발생했습니다.").queue()
+            return
         }
 
         val commands = CommandService.getCommands(user!!)
@@ -49,10 +57,10 @@ object AddCommand : CommandInterface {
             return
         }
 
-        val chzzkChannel = Connector.getChannel(user.token)
+        val chzzkChannel = Connector.getChannel(user!!.token)
 
         try {
-            CommandService.saveCommand(user, label, content, failContent ?: "")
+            CommandService.saveCommand(user!!, label, content, failContent ?: "")
             try {
                 ChzzkHandler.reloadCommand(chzzkChannel!!)
             } catch (_: Exception) {}
diff --git a/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/commands/AlertCommand.kt b/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/commands/AlertCommand.kt
index dcc9098..25fa024 100644
--- a/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/commands/AlertCommand.kt
+++ b/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/commands/AlertCommand.kt
@@ -5,6 +5,7 @@ import net.dv8tion.jda.api.events.interaction.command.SlashCommandInteractionEve
 import net.dv8tion.jda.api.interactions.commands.OptionType
 import net.dv8tion.jda.api.interactions.commands.build.Commands
 import net.dv8tion.jda.api.interactions.commands.build.OptionData
+import org.jetbrains.exposed.sql.transactions.transaction
 import org.slf4j.LoggerFactory
 import space.mori.chzzk_bot.chatbot.chzzk.ChzzkHandler
 import space.mori.chzzk_bot.chatbot.chzzk.Connector
@@ -31,14 +32,21 @@ object AlertCommand : CommandInterface {
         }
 
         if (manager != null) {
-            user = manager.user
-            ManagerService.updateManager(user, event.user.idLong, event.user.effectiveName)
+            transaction {
+                user = manager.user
+            }
+            user?.let { ManagerService.updateManager(it, event.user.idLong, event.user.effectiveName) }
+        }
+
+        if (user == null) {
+            event.hook.sendMessage("에러가 발생했습니다.").queue()
+            return
         }
 
         val chzzkChannel = Connector.getChannel(user!!.token)
 
         try {
-            val newUser = UserService.updateLiveAlert(user.id.value, channel?.guild?.idLong ?: 0L, channel?.idLong ?: 0L, content ?: "")
+            val newUser = UserService.updateLiveAlert(user!!.id.value, channel?.guild?.idLong ?: 0L, channel?.idLong ?: 0L, content ?: "")
             try {
                 ChzzkHandler.reloadUser(chzzkChannel!!, newUser)
             } catch (_: Exception) {}
diff --git a/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/commands/RemoveCommand.kt b/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/commands/RemoveCommand.kt
index 5bd8c41..377413d 100644
--- a/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/commands/RemoveCommand.kt
+++ b/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/commands/RemoveCommand.kt
@@ -5,6 +5,7 @@ import net.dv8tion.jda.api.events.interaction.command.SlashCommandInteractionEve
 import net.dv8tion.jda.api.interactions.commands.OptionType
 import net.dv8tion.jda.api.interactions.commands.build.Commands
 import net.dv8tion.jda.api.interactions.commands.build.OptionData
+import org.jetbrains.exposed.sql.transactions.transaction
 import org.slf4j.LoggerFactory
 import space.mori.chzzk_bot.chatbot.chzzk.ChzzkHandler
 import space.mori.chzzk_bot.chatbot.chzzk.Connector
@@ -35,14 +36,21 @@ object RemoveCommand : CommandInterface {
         }
 
         if (manager != null) {
-            user = manager.user
-            ManagerService.updateManager(user, event.user.idLong, event.user.effectiveName)
+            transaction {
+                user = manager.user
+            }
+            user?.let { ManagerService.updateManager(it, event.user.idLong, event.user.effectiveName) }
+        }
+
+        if (user == null) {
+            event.hook.sendMessage("에러가 발생했습니다.").queue()
+            return
         }
 
         val chzzkChannel = Connector.getChannel(user!!.token)
 
         try {
-            CommandService.removeCommand(user, label)
+            CommandService.removeCommand(user!!, label)
             try {
                 ChzzkHandler.reloadCommand(chzzkChannel!!)
             } catch (_: Exception) {}
diff --git a/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/commands/UpdateCommand.kt b/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/commands/UpdateCommand.kt
index 3d9c03d..e1f8e0f 100644
--- a/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/commands/UpdateCommand.kt
+++ b/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/commands/UpdateCommand.kt
@@ -5,6 +5,7 @@ import net.dv8tion.jda.api.events.interaction.command.SlashCommandInteractionEve
 import net.dv8tion.jda.api.interactions.commands.OptionType
 import net.dv8tion.jda.api.interactions.commands.build.Commands
 import net.dv8tion.jda.api.interactions.commands.build.OptionData
+import org.jetbrains.exposed.sql.transactions.transaction
 import org.slf4j.LoggerFactory
 import space.mori.chzzk_bot.chatbot.chzzk.ChzzkHandler
 import space.mori.chzzk_bot.chatbot.chzzk.Connector
@@ -39,14 +40,21 @@ object UpdateCommand : CommandInterface {
         }
 
         if (manager != null) {
-            user = manager.user
-            ManagerService.updateManager(user, event.user.idLong, event.user.effectiveName)
+            transaction {
+                user = manager.user
+            }
+            user?.let { ManagerService.updateManager(it, event.user.idLong, event.user.effectiveName) }
+        }
+
+        if (user == null) {
+            event.hook.sendMessage("에러가 발생했습니다.").queue()
+            return
         }
 
         val chzzkChannel = Connector.getChannel(user!!.token)
 
         try {
-            CommandService.updateCommand(user, label, content, failContent ?: "")
+            CommandService.updateCommand(user!!, label, content, failContent ?: "")
             chzzkChannel?.let { ChzzkHandler.reloadCommand(it) }
             event.hook.sendMessage("등록이 완료되었습니다. $label = $content").queue()
         } catch (e: Exception) {
diff --git a/common/src/main/kotlin/space/mori/chzzk_bot/common/services/ManagerService.kt b/common/src/main/kotlin/space/mori/chzzk_bot/common/services/ManagerService.kt
index 796ce59..1f913c1 100644
--- a/common/src/main/kotlin/space/mori/chzzk_bot/common/services/ManagerService.kt
+++ b/common/src/main/kotlin/space/mori/chzzk_bot/common/services/ManagerService.kt
@@ -1,5 +1,7 @@
 package space.mori.chzzk_bot.common.services
 
+import org.jetbrains.exposed.dao.load
+import org.jetbrains.exposed.dao.with
 import org.jetbrains.exposed.sql.SqlExpressionBuilder.eq
 import org.jetbrains.exposed.sql.and
 import org.jetbrains.exposed.sql.transactions.transaction
@@ -23,14 +25,16 @@ object ManagerService {
     }
 
     fun updateManager(user: User, discordId: Long, name: String): Manager {
-        if (user.liveAlertGuild == null)
-            throw RuntimeException("${user.username} has no liveAlertGuild")
+        return transaction {
+            if (user.liveAlertGuild == null)
+                throw RuntimeException("${user.username} has no liveAlertGuild")
 
-        val manager = getUser(user.liveAlertGuild!!, discordId) ?: throw RuntimeException("$name isn't manager.")
+            val manager = getUser(user.liveAlertGuild!!, discordId) ?: throw RuntimeException("$name isn't manager.")
 
-        manager.lastUserName = name
+            manager.lastUserName = name
 
-        return manager
+            manager
+        }
     }
 
     fun getUser(guildId: Long, discordId: Long): Manager? {
@@ -38,19 +42,19 @@ object ManagerService {
             val manager = Manager.find(
                 (Managers.discordGuildId eq guildId) and (Managers.managerId eq discordId),
             )
-
-            val result = manager.firstOrNull()
-
-            result?.eagerLoad()
-            result
+                .with(Manager::user)
+                .firstOrNull()
+            manager
         }
     }
 
     fun getAllUsers(guildId: Long): List<Manager> {
         return transaction {
-            val result = Manager.find(Managers.discordGuildId eq guildId).toList()
+            val result = Manager.find(Managers.discordGuildId eq guildId)
+                .with(Manager::user)
+                .toList()
 
-            result.forEach { it.eagerLoad() }
+            result.forEach { it.load(Manager::user) }
 
             result
         }
@@ -72,8 +76,4 @@ object ManagerService {
             managerRow
         }
     }
-
-    fun Manager.eagerLoad() {
-        this.user
-    }
 }
\ No newline at end of file
diff --git a/gradle.properties b/gradle.properties
index da20dc7..d7b3d85 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,6 +1,6 @@
 kotlin.code.style=official
 group = space.mori
-version = 1.1.1
+version = 1.1.2
 
 org.gradle.jvmargs=-Dfile.encoding=UTF-8
 org.gradle.console=plain