diff --git a/src/ai.ts b/src/ai.ts
index d81e046..3e97984 100644
--- a/src/ai.ts
+++ b/src/ai.ts
@@ -4,17 +4,19 @@ import autobind from 'autobind-decorator';
 import * as loki from 'lokijs';
 import * as request from 'request-promise-native';
 import chalk from 'chalk';
+const delay = require('timeout-as-promise');
+
 import config from './config';
 import Module from './module';
-import MessageLike from './message-like';
+import Message from './message';
 import { FriendDoc } from './friend';
 import { User } from './misskey/user';
 import getCollection from './utils/get-collection';
 import Stream from './stream';
 import log from './log';
 
-type MentionHook = (msg: MessageLike) => boolean | HandlerResult;
-type ContextHook = (msg: MessageLike, data?: any) => void | HandlerResult;
+type MentionHook = (msg: Message) => boolean | HandlerResult;
+type ContextHook = (msg: Message, data?: any) => void | HandlerResult;
 
 export type HandlerResult = {
 	reaction: string;
@@ -37,7 +39,7 @@ export default class 藍 {
 	public db: loki;
 
 	private contexts: loki.Collection<{
-		isMessage: boolean;
+		isDm: boolean;
 		noteId?: string;
 		userId?: string;
 		module: string;
@@ -94,20 +96,20 @@ export default class 藍 {
 		mainStream.on('mention', data => {
 			if (data.userId == this.account.id) return; // 自分は弾く
 			if (data.text && data.text.startsWith('@' + this.account.username)) {
-				this.onMention(new MessageLike(this, data, false));
+				this.onReceiveMessage(new Message(this, data, false));
 			}
 		});
 
 		// 返信されたとき
 		mainStream.on('reply', data => {
 			if (data.userId == this.account.id) return; // 自分は弾く
-			this.onMention(new MessageLike(this, data, false));
+			this.onReceiveMessage(new Message(this, data, false));
 		});
 
 		// メッセージ
 		mainStream.on('messagingMessage', data => {
 			if (data.userId == this.account.id) return; // 自分は弾く
-			this.onMention(new MessageLike(this, data, true));
+			this.onReceiveMessage(new Message(this, data, true));
 		});
 		//#endregion
 
@@ -125,17 +127,17 @@ export default class 藍 {
 	}
 
 	@autobind
-	private onMention(msg: MessageLike) {
+	private async onReceiveMessage(msg: Message): Promise<void> {
 		this.log(chalk.gray(`<<< An message received: ${chalk.underline(msg.id)}`));
 
-		const isNoContext = !msg.isMessage && msg.replyId == null;
+		const isNoContext = !msg.isDm && msg.replyId == null;
 
 		// Look up the context
-		const context = isNoContext ? null : this.contexts.findOne(msg.isMessage ? {
-			isMessage: true,
+		const context = isNoContext ? null : this.contexts.findOne(msg.isDm ? {
+			isDm: true,
 			userId: msg.userId
 		} : {
-			isMessage: false,
+			isDm: false,
 			noteId: msg.replyId
 		});
 
@@ -161,22 +163,22 @@ export default class 藍 {
 			}
 		}
 
-		setTimeout(() => {
-			if (msg.isMessage) {
-				// 既読にする
-				this.api('messaging/messages/read', {
-					messageId: msg.id,
+		await delay(1000);
+
+		if (msg.isDm) {
+			// 既読にする
+			this.api('messaging/messages/read', {
+				messageId: msg.id,
+			});
+		} else {
+			// リアクションする
+			if (reaction) {
+				this.api('notes/reactions/create', {
+					noteId: msg.id,
+					reaction: reaction
 				});
-			} else {
-				// リアクションする
-				if (reaction) {
-					this.api('notes/reactions/create', {
-						noteId: msg.id,
-						reaction: reaction
-					});
-				}
 			}
-		}, 1000);
+		}
 	}
 
 	@autobind
@@ -202,15 +204,15 @@ export default class 藍 {
 	};
 
 	@autobind
-	public subscribeReply(module: Module, key: string, isMessage: boolean, id: string, data?: any) {
-		this.contexts.insertOne(isMessage ? {
-			isMessage: true,
+	public subscribeReply(module: Module, key: string, isDm: boolean, id: string, data?: any) {
+		this.contexts.insertOne(isDm ? {
+			isDm: true,
 			userId: id,
 			module: module.name,
 			key: key,
 			data: data
 		} : {
-			isMessage: false,
+			isDm: false,
 			noteId: id,
 			module: module.name,
 			key: key,
diff --git a/src/message-like.ts b/src/message.ts
similarity index 90%
rename from src/message-like.ts
rename to src/message.ts
index d4128f6..e3c1c7d 100644
--- a/src/message-like.ts
+++ b/src/message.ts
@@ -7,10 +7,10 @@ import or from './utils/or';
 import chalk from 'chalk';
 const delay = require('timeout-as-promise');
 
-export default class MessageLike {
+export default class Message {
 	private ai: 藍;
 	private messageOrNote: any;
-	public isMessage: boolean;
+	public isDm: boolean;
 
 	public get id(): string {
 		return this.messageOrNote.id;
@@ -34,10 +34,10 @@ export default class MessageLike {
 
 	public friend: Friend;
 
-	constructor(ai: 藍, messageOrNote: any, isMessage: boolean) {
+	constructor(ai: 藍, messageOrNote: any, isDm: boolean) {
 		this.ai = ai;
 		this.messageOrNote = messageOrNote;
-		this.isMessage = isMessage;
+		this.isDm = isDm;
 
 		this.friend = new Friend(ai, { user: this.user });
 
@@ -57,7 +57,7 @@ export default class MessageLike {
 
 		await delay(2000);
 
-		if (this.isMessage) {
+		if (this.isDm) {
 			return await this.ai.sendMessage(this.messageOrNote.userId, {
 				text: text
 			});
diff --git a/src/module.ts b/src/module.ts
index 25a98cc..eec0a58 100644
--- a/src/module.ts
+++ b/src/module.ts
@@ -19,8 +19,8 @@ export default abstract class Module {
 	}
 
 	@autobind
-	protected subscribeReply(key: string, isMessage: boolean, id: string, data?: any) {
-		this.ai.subscribeReply(this, key, isMessage, id, data);
+	protected subscribeReply(key: string, isDm: boolean, id: string, data?: any) {
+		this.ai.subscribeReply(this, key, isDm, id, data);
 	}
 
 	@autobind
diff --git a/src/modules/core/index.ts b/src/modules/core/index.ts
index cab6f7c..3f3d91b 100644
--- a/src/modules/core/index.ts
+++ b/src/modules/core/index.ts
@@ -1,7 +1,7 @@
 import autobind from 'autobind-decorator';
 import { HandlerResult } from '../../ai';
 import Module from '../../module';
-import MessageLike from '../../message-like';
+import Message from '../../message';
 import serifs, { getSerif } from '../../serifs';
 import getDate from '../../utils/get-date';
 
@@ -21,7 +21,7 @@ export default class CoreModule extends Module {
 	}
 
 	@autobind
-	private mentionHook(msg: MessageLike) {
+	private mentionHook(msg: Message) {
 		if (!msg.text) return false;
 
 		return (
@@ -40,13 +40,13 @@ export default class CoreModule extends Module {
 	}
 
 	@autobind
-	private setName(msg: MessageLike): boolean  {
+	private setName(msg: Message): boolean  {
 		if (!msg.text) return false;
 		if (!msg.text.includes('って呼んで')) return false;
 		if (msg.text.startsWith('って呼んで')) return false;
 
 		// メッセージのみ
-		if (!msg.isMessage) return true;
+		if (!msg.isDm) return true;
 
 		if (msg.friend.love < 5) {
 			msg.reply(serifs.core.requireMoreLove);
@@ -72,7 +72,7 @@ export default class CoreModule extends Module {
 			msg.reply(serifs.core.setNameOk(name));
 		} else {
 			msg.reply(serifs.core.san).then(reply => {
-				this.subscribeReply(msg.userId, msg.isMessage, msg.isMessage ? msg.userId : reply.id, {
+				this.subscribeReply(msg.userId, msg.isDm, msg.isDm ? msg.userId : reply.id, {
 					name: name
 				});
 			});
@@ -82,7 +82,7 @@ export default class CoreModule extends Module {
 	}
 
 	@autobind
-	private greet(msg: MessageLike): boolean {
+	private greet(msg: Message): boolean {
 		if (msg.text == null) return false;
 
 		const incLove = () => {
@@ -151,11 +151,11 @@ export default class CoreModule extends Module {
 	}
 
 	@autobind
-	private nadenade(msg: MessageLike): boolean {
+	private nadenade(msg: Message): boolean {
 		if (!msg.includes(['なでなで'])) return false;
 
 		// メッセージのみ
-		if (!msg.isMessage) return true;
+		if (!msg.isDm) return true;
 
 		//#region 1日に1回だけ親愛度を上げる(嫌われてない場合のみ)
 		if (msg.friend.love >= 0) {
@@ -186,11 +186,11 @@ export default class CoreModule extends Module {
 	}
 
 	@autobind
-	private kawaii(msg: MessageLike): boolean {
+	private kawaii(msg: Message): boolean {
 		if (!msg.includes(['かわいい', '可愛い'])) return false;
 
 		// メッセージのみ
-		if (!msg.isMessage) return true;
+		if (!msg.isDm) return true;
 
 		msg.reply(
 			msg.friend.love >= 5 ? serifs.core.kawaii.love :
@@ -201,11 +201,11 @@ export default class CoreModule extends Module {
 	}
 
 	@autobind
-	private suki(msg: MessageLike): boolean {
+	private suki(msg: Message): boolean {
 		if (!msg.or(['好き', 'すき'])) return false;
 
 		// メッセージのみ
-		if (!msg.isMessage) return true;
+		if (!msg.isDm) return true;
 
 		msg.reply(
 			msg.friend.love >= 5 ? (msg.friend.name ? serifs.core.suki.love(msg.friend.name) : serifs.core.suki.normal) :
@@ -216,11 +216,11 @@ export default class CoreModule extends Module {
 	}
 
 	@autobind
-	private hug(msg: MessageLike): boolean {
+	private hug(msg: Message): boolean {
 		if (!msg.or(['ぎゅ', 'むぎゅ', /^はぐ(し(て|よ|よう)?)?$/])) return false;
 
 		// メッセージのみ
-		if (!msg.isMessage) return true;
+		if (!msg.isDm) return true;
 
 		//#region 前のハグから1分経ってない場合は返信しない
 		// これは、「ハグ」と言って「ぎゅー」と返信したとき、相手が
@@ -250,11 +250,11 @@ export default class CoreModule extends Module {
 	}
 
 	@autobind
-	private humu(msg: MessageLike): boolean {
+	private humu(msg: Message): boolean {
 		if (!msg.includes(['踏んで'])) return false;
 
 		// メッセージのみ
-		if (!msg.isMessage) return true;
+		if (!msg.isDm) return true;
 
 		msg.reply(
 			msg.friend.love >= 5 ? serifs.core.humu.love :
@@ -265,11 +265,11 @@ export default class CoreModule extends Module {
 	}
 
 	@autobind
-	private batou(msg: MessageLike): boolean {
+	private batou(msg: Message): boolean {
 		if (!msg.includes(['罵倒して', '罵って'])) return false;
 
 		// メッセージのみ
-		if (!msg.isMessage) return true;
+		if (!msg.isDm) return true;
 
 		msg.reply(
 			msg.friend.love >= 5 ? serifs.core.batou.love :
@@ -280,7 +280,7 @@ export default class CoreModule extends Module {
 	}
 
 	@autobind
-	private ponkotu(msg: MessageLike): boolean | HandlerResult {
+	private ponkotu(msg: Message): boolean | HandlerResult {
 		if (!msg.includes(['ぽんこつ'])) return false;
 
 		msg.friend.decLove();
@@ -291,7 +291,7 @@ export default class CoreModule extends Module {
 	}
 
 	@autobind
-	private rmrf(msg: MessageLike): boolean | HandlerResult {
+	private rmrf(msg: Message): boolean | HandlerResult {
 		if (!msg.includes(['rm -rf'])) return false;
 
 		msg.friend.decLove();
@@ -302,7 +302,7 @@ export default class CoreModule extends Module {
 	}
 
 	@autobind
-	private shutdown(msg: MessageLike): boolean | HandlerResult {
+	private shutdown(msg: Message): boolean | HandlerResult {
 		if (!msg.includes(['shutdown'])) return false;
 
 		msg.reply(serifs.core.shutdown);
@@ -313,7 +313,7 @@ export default class CoreModule extends Module {
 	}
 
 	@autobind
-	private contextHook(msg: MessageLike, data: any) {
+	private contextHook(msg: Message, data: any) {
 		if (msg.text == null) return;
 
 		const done = () => {
@@ -329,7 +329,7 @@ export default class CoreModule extends Module {
 			done();
 		} else {
 			msg.reply(serifs.core.yesOrNo).then(reply => {
-				this.subscribeReply(msg.userId, msg.isMessage, reply.id, data);
+				this.subscribeReply(msg.userId, msg.isDm, reply.id, data);
 			});
 		}
 	}
diff --git a/src/modules/dice/index.ts b/src/modules/dice/index.ts
index d432567..122cbc2 100644
--- a/src/modules/dice/index.ts
+++ b/src/modules/dice/index.ts
@@ -1,6 +1,6 @@
 import autobind from 'autobind-decorator';
 import Module from '../../module';
-import MessageLike from '../../message-like';
+import Message from '../../message';
 import serifs from '../../serifs';
 
 export default class DiceModule extends Module {
@@ -14,7 +14,7 @@ export default class DiceModule extends Module {
 	}
 
 	@autobind
-	private mentionHook(msg: MessageLike) {
+	private mentionHook(msg: Message) {
 		if (msg.text == null) return false;
 
 		const query = msg.text.match(/([0-9]+)[dD]([0-9]+)/);
diff --git a/src/modules/emoji/index.ts b/src/modules/emoji/index.ts
index 360f854..63c7d86 100644
--- a/src/modules/emoji/index.ts
+++ b/src/modules/emoji/index.ts
@@ -1,6 +1,6 @@
 import autobind from 'autobind-decorator';
 import Module from '../../module';
-import MessageLike from '../../message-like';
+import Message from '../../message';
 import serifs from '../../serifs';
 
 const hands = [
@@ -137,7 +137,7 @@ export default class EmojiModule extends Module {
 	}
 
 	@autobind
-	private mentionHook(msg: MessageLike) {
+	private mentionHook(msg: Message) {
 		if (msg.includes(['顔文字', '絵文字', 'emoji', '福笑い'])) {
 			const hand = hands[Math.floor(Math.random() * hands.length)];
 			const face = faces[Math.floor(Math.random() * faces.length)];
diff --git a/src/modules/follow/index.ts b/src/modules/follow/index.ts
index eea177b..a493d8b 100644
--- a/src/modules/follow/index.ts
+++ b/src/modules/follow/index.ts
@@ -1,6 +1,6 @@
 import autobind from 'autobind-decorator';
 import Module from '../../module';
-import MessageLike from '../../message-like';
+import Message from '../../message';
 
 export default class FollowModule extends Module {
 	public readonly name = 'follow';
@@ -13,7 +13,7 @@ export default class FollowModule extends Module {
 	}
 
 	@autobind
-	private mentionHook(msg: MessageLike) {
+	private mentionHook(msg: Message) {
 		if (msg.text && msg.includes(['フォロー', 'フォロバ', 'follow me'])) {
 			if (!msg.user.isFollowing) {
 				this.ai.api('following/create', {
diff --git a/src/modules/fortune/index.ts b/src/modules/fortune/index.ts
index e8b9037..10b530b 100644
--- a/src/modules/fortune/index.ts
+++ b/src/modules/fortune/index.ts
@@ -1,6 +1,6 @@
 import autobind from 'autobind-decorator';
 import Module from '../../module';
-import MessageLike from '../../message-like';
+import Message from '../../message';
 import serifs from '../../serifs';
 import * as seedrandom from 'seedrandom';
 import { blessing, itemPrefixes, items } from './vocabulary';
@@ -16,7 +16,7 @@ export default class FortuneModule extends Module {
 	}
 
 	@autobind
-	private mentionHook(msg: MessageLike) {
+	private mentionHook(msg: Message) {
 		if (msg.includes(['占', 'うらな', '運勢', 'おみくじ'])) {
 			const date = new Date();
 			const seed = `${date.getFullYear()}/${date.getMonth()}/${date.getDate()}@${msg.userId}`;
diff --git a/src/modules/guessing-game/index.ts b/src/modules/guessing-game/index.ts
index 4fb68d6..e1cadc0 100644
--- a/src/modules/guessing-game/index.ts
+++ b/src/modules/guessing-game/index.ts
@@ -1,7 +1,7 @@
 import autobind from 'autobind-decorator';
 import * as loki from 'lokijs';
 import Module from '../../module';
-import MessageLike from '../../message-like';
+import Message from '../../message';
 import serifs from '../../serifs';
 import getCollection from '../../utils/get-collection';
 
@@ -32,7 +32,7 @@ export default class GuessingGameModule extends Module {
 	}
 
 	@autobind
-	private mentionHook(msg: MessageLike) {
+	private mentionHook(msg: Message) {
 		if (!msg.includes(['数当て', '数あて'])) return false;
 
 		const exist = this.guesses.findOne({
@@ -40,7 +40,7 @@ export default class GuessingGameModule extends Module {
 			isEnded: false
 		});
 
-		if (!msg.isMessage) {
+		if (!msg.isDm) {
 			if (exist != null) {
 				msg.reply(serifs.guessingGame.arleadyStarted);
 			} else {
@@ -62,14 +62,14 @@ export default class GuessingGameModule extends Module {
 		});
 
 		msg.reply(serifs.guessingGame.started).then(reply => {
-			this.subscribeReply(msg.userId, msg.isMessage, msg.isMessage ? msg.userId : reply.id);
+			this.subscribeReply(msg.userId, msg.isDm, msg.isDm ? msg.userId : reply.id);
 		});
 
 		return true;
 	}
 
 	@autobind
-	private contextHook(msg: MessageLike) {
+	private contextHook(msg: Message) {
 		if (msg.text == null) return;
 
 		const exist = this.guesses.findOne({
@@ -90,7 +90,7 @@ export default class GuessingGameModule extends Module {
 
 		if (guess == null) {
 			msg.reply(serifs.guessingGame.nan).then(reply => {
-				this.subscribeReply(msg.userId, msg.isMessage, reply.id);
+				this.subscribeReply(msg.userId, msg.isDm, reply.id);
 			});
 			return;
 		}
@@ -128,7 +128,7 @@ export default class GuessingGameModule extends Module {
 
 		msg.reply(text).then(reply => {
 			if (!end) {
-				this.subscribeReply(msg.userId, msg.isMessage, reply.id);
+				this.subscribeReply(msg.userId, msg.isDm, reply.id);
 			}
 		});
 	}
diff --git a/src/modules/ping/index.ts b/src/modules/ping/index.ts
index 59228f0..0442c29 100644
--- a/src/modules/ping/index.ts
+++ b/src/modules/ping/index.ts
@@ -1,6 +1,6 @@
 import autobind from 'autobind-decorator';
 import Module from '../../module';
-import MessageLike from '../../message-like';
+import Message from '../../message';
 
 export default class PingModule extends Module {
 	public readonly name = 'ping';
@@ -13,7 +13,7 @@ export default class PingModule extends Module {
 	}
 
 	@autobind
-	private mentionHook(msg: MessageLike) {
+	private mentionHook(msg: Message) {
 		if (msg.text && msg.text.includes('ping')) {
 			msg.reply('PONG!');
 			return true;
diff --git a/src/modules/reversi/index.ts b/src/modules/reversi/index.ts
index 01ca0d0..a8536be 100644
--- a/src/modules/reversi/index.ts
+++ b/src/modules/reversi/index.ts
@@ -3,7 +3,7 @@ import autobind from 'autobind-decorator';
 import Module from '../../module';
 import serifs from '../../serifs';
 import config from '../../config';
-import MessageLike from '../../message-like';
+import Message from '../../message';
 import Friend from '../../friend';
 import getDate from '../../utils/get-date';
 
@@ -33,7 +33,7 @@ export default class ReversiModule extends Module {
 	}
 
 	@autobind
-	private mentionHook(msg: MessageLike) {
+	private mentionHook(msg: Message) {
 		if (msg.includes(['リバーシ', 'オセロ', 'reversi', 'othello'])) {
 			if (config.reversiEnabled) {
 				msg.reply(serifs.reversi.ok);
diff --git a/src/modules/timer/index.ts b/src/modules/timer/index.ts
index 12b89e3..a21dd72 100644
--- a/src/modules/timer/index.ts
+++ b/src/modules/timer/index.ts
@@ -1,6 +1,6 @@
 import autobind from 'autobind-decorator';
 import Module from '../../module';
-import MessageLike from '../../message-like';
+import Message from '../../message';
 import serifs from '../../serifs';
 
 export default class TimerModule extends Module {
@@ -14,7 +14,7 @@ export default class TimerModule extends Module {
 	}
 
 	@autobind
-	private mentionHook(msg: MessageLike) {
+	private mentionHook(msg: Message) {
 		const secondsQuery = (msg.text || '').match(/([0-9]+)秒/);
 		const minutesQuery = (msg.text || '').match(/([0-9]+)分/);
 		const hoursQuery = (msg.text || '').match(/([0-9]+)時間/);