diff --git a/package.json b/package.json
index f2d7119..24a39f3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "muffinbot",
-  "version": "2.0.0-oreo.p240608a",
+  "version": "2.1.0-oreo.d240609a",
   "main": "dist/index.js",
   "private": true,
   "dependencies": {
diff --git a/src/Client.ts b/src/Client.ts
index f239551..303c336 100644
--- a/src/Client.ts
+++ b/src/Client.ts
@@ -14,22 +14,20 @@ import Dokdo from 'dokdo'
 const prefix = '머핀아 '
 
 export default class MuffinBot extends Client {
+  #modules: Collection<string, Command> = new Collection()
   get chatBot() {
     return new ChatBot()
   }
-
-  get dokdo() {
-    return new Dokdo(this, {
-      aliases: ['dokdo', 'dok'],
-      owners: [config.bot.owner_ID],
-      noPerm,
-      prefix,
-    })
-  }
   get modules(): Collection<string, Command> {
     return this.#modules
   }
-  #modules: Collection<string, Command> = new Collection()
+  public dokdo: Dokdo = new Dokdo(this, {
+    aliases: ['dokdo', 'dok'],
+    owners: [config.bot.owner_ID],
+    noPerm,
+    prefix,
+  })
+  public prefix = prefix
   public constructor() {
     super({
       intents: [
@@ -75,19 +73,17 @@ export default class MuffinBot extends Client {
         if (args[0].startsWith('dokdo') || args[0].startsWith('dok')) {
           await this.dokdo.run(msg)
         } else {
-          if (msg.channel instanceof TextChannel) {
-            await msg.channel.sendTyping()
-            const command = this.modules.get(args.shift()!.toLowerCase())
+          await msg.channel.sendTyping()
+          const command = this.modules.get(args.shift()!.toLowerCase())
 
-            if (command) {
-              if (command.noPerm && msg.author.id !== config.bot.owner_ID)
-                return await noPerm(msg)
+          if (command) {
+            if (command.noPerm && msg.author.id !== config.bot.owner_ID)
+              return await noPerm(msg)
 
-              await command.execute(msg, args)
-            } else {
-              const response = await this.chatBot.getResponse(msg)
-              await msg.reply(response)
-            }
+            await command.execute(msg, args)
+          } else {
+            const response = await this.chatBot.getResponse(msg)
+            await msg.reply(response)
           }
         }
       }
@@ -100,5 +96,7 @@ declare module 'discord.js' {
   interface Client {
     get chatBot(): ChatBot
     get modules(): Collection<string, Command>
+    dokdo: Dokdo
+    prefix: string
   }
 }
diff --git a/src/modules/ChatBot.ts b/src/modules/ChatBot.ts
index 0376735..a6c2884 100644
--- a/src/modules/ChatBot.ts
+++ b/src/modules/ChatBot.ts
@@ -9,12 +9,9 @@ export default class ChatBot {
     return new MaaDatabase()
   }
   public async getResponse(msg: Message): Promise<string> {
+    const prefix = msg.client.prefix
     const data = await this.db.statement.all()
-    const args = msg.content
-      .slice('머핀아 '.length)
-      .trim()
-      .split(/ +/g)
-      .join(' ')
+    const args = msg.content.slice(prefix.length).trim().split(/ +/g).join(' ')
     const learnData = await this.db.learn.findOne(args)
     const randomNumber = Math.round(Math.random() * (2 - 1) + 1)
 
@@ -23,14 +20,14 @@ export default class ChatBot {
       console.log(args)
     }
 
-    if (randomNumber === 1) {
-      if (learnData[0]) {
-        if (args.startsWith(learnData[0].command)) {
-          return `${learnData[0].result}\n\`${
-            (await msg.client.users.fetch(learnData[0].user_id)).username
-          }님이 알려주셨어요.\``
-        }
-      }
+    if (
+      randomNumber === 1 &&
+      learnData[0] &&
+      args.startsWith(learnData[0].command)
+    ) {
+      return `${learnData[0].result}\n\`${
+        (await msg.client.users.fetch(learnData[0].user_id)).username
+      }님이 알려주셨어요.\``
     }
 
     let response: string
@@ -46,27 +43,24 @@ export default class ChatBot {
   }
 
   public async train(client: Client): Promise<ChatBot> {
+    const prefix = client.prefix
     client.on('messageCreate', async msg => {
       if (msg.author.bot) return
       if (msg.author.id === config.train.user_ID) {
         const response = await this.getResponse(msg)
-        const data = await this.db.statement.all()
         await this.db.statement.insert({
-          id: ++data[data.length - 1].id,
           text: msg.content,
           persona: 'muffin',
           in_response_to: response,
         })
       } else {
         if (!(msg.channel as TextChannel).nsfw) return
-        if (!msg.content.startsWith('머핀아 ')) return
-        const user = `user:${msg.author.username.slice(0, 50).toLowerCase()}`
+        if (!msg.content.startsWith(prefix)) return
+        const persona = `user:${msg.author.username.slice(0, 50).toLowerCase()}`
         const text = msg.content.replace('머핀아 ', '')
-        const data = await this.db.nsfwContent.all()
         await this.db.nsfwContent.insert({
-          id: ++data[data.length - 1].id,
           text,
-          persona: user,
+          persona,
         })
       }
     })
diff --git a/src/modules/database/model/learn.ts b/src/modules/database/model/learn.ts
index 2cc4035..c6c27ec 100644
--- a/src/modules/database/model/learn.ts
+++ b/src/modules/database/model/learn.ts
@@ -60,7 +60,7 @@ export class LearnTable implements BaseTable<LearnData, string> {
   }
 
   public async findOneAnotherKey(
-    key: 'command' | 'result' | 'user_id' | 'created_at',
+    key: 'id' | 'command' | 'result' | 'user_id' | 'created_at',
     data: any,
   ): Promise<LearnData[]> {
     const [rows] = await this._database.execute<LearnData[]>(
diff --git a/src/modules/database/model/nsfwContent.ts b/src/modules/database/model/nsfwContent.ts
index ceff214..af08ffa 100644
--- a/src/modules/database/model/nsfwContent.ts
+++ b/src/modules/database/model/nsfwContent.ts
@@ -21,17 +21,13 @@ export class NSFWContentTable implements BaseTable<NSFWData, number> {
     return rows
   }
 
-  public async insert(data: {
-    id: number
-    text: string
-    persona: string
-  }): Promise<void> {
+  public async insert(data: { text: string; persona: string }): Promise<void> {
     const db = await this._database.getConnection()
 
     await run(db, async () => {
       await db.execute(
-        'INSERT INTO nsfw_content (id, text, persona) VALUES (?, ?, ?);',
-        [data.id, data.text, data.persona],
+        'INSERT INTO nsfw_content (text, persona) VALUES (?, ?);',
+        [data.text, data.persona],
       )
     })
   }
diff --git a/src/modules/database/model/statement.ts b/src/modules/database/model/statement.ts
index 9262d23..f2a07bc 100644
--- a/src/modules/database/model/statement.ts
+++ b/src/modules/database/model/statement.ts
@@ -22,7 +22,6 @@ export class StatementTable implements BaseTable<ResponseData, number> {
   }
 
   public async insert(data: {
-    id: number
     text: string
     persona: string
     in_response_to: string
@@ -31,8 +30,8 @@ export class StatementTable implements BaseTable<ResponseData, number> {
 
     await run(db, async () => {
       await db.execute(
-        'INSERT INTO statement (id, text, persona, in_response_to) VALUES (?, ?, ?, ?);',
-        [data.id, data.text, data.persona, data.in_response_to],
+        'INSERT INTO statement (text, persona, in_response_to) VALUES (?, ?, ?);',
+        [data.text, data.persona, data.in_response_to],
       )
     })
   }
diff --git a/src/modules/database/type.ts b/src/modules/database/type.ts
index 8a1b3e9..2f42527 100644
--- a/src/modules/database/type.ts
+++ b/src/modules/database/type.ts
@@ -16,6 +16,7 @@ export interface ResponseData extends BaseData {
 }
 
 export interface LearnData extends RowDataPacket {
+  id: number
   command: string
   result: string
   user_id: Snowflake