diff --git a/src/ai.ts b/src/ai.ts
index 679500c..4042ddf 100644
--- a/src/ai.ts
+++ b/src/ai.ts
@@ -123,17 +123,6 @@ export default class 藍 {
 		this.modules.push(module);
 	}
 
-	/**
-	 * 指定したユーザーの「呼んでもらいたい名前」を取得します
-	 */
-	public getName = (userId: string) => {
-		const friend = this.friends.findOne({
-			userId: userId
-		});
-
-		return friend != null ? friend.name : null;
-	}
-
 	private onMessage = (msg: any) => {
 		switch (msg.type) {
 			// メンションされたとき
diff --git a/src/message-like.ts b/src/message-like.ts
index 4d1a6b6..9a8a7b5 100644
--- a/src/message-like.ts
+++ b/src/message-like.ts
@@ -26,10 +26,22 @@ export default class MessageLike {
 		return this.messageOrNote.replyId;
 	}
 
+	public friend: ReturnType<藍['friends']['findOne']>;
+
 	constructor(ai: 藍, messageOrNote: any, isMessage: boolean) {
 		this.ai = ai;
 		this.messageOrNote = messageOrNote;
 		this.isMessage = isMessage;
+
+		this.friend = this.ai.friends.findOne({
+			userId: this.userId
+		});
+
+		if (this.friend == null) {
+			this.friend = this.ai.friends.insertOne({
+				userId: this.userId
+			});
+		}
 	}
 
 	public reply = async (text: string, cw?: string) => {
diff --git a/src/modules/core/index.ts b/src/modules/core/index.ts
index b668abd..9abdf81 100644
--- a/src/modules/core/index.ts
+++ b/src/modules/core/index.ts
@@ -16,16 +16,6 @@ export default class CoreModule implements IModule {
 		if (!msg.text) return false;
 
 		if (msg.text.includes('って呼んで') && !msg.text.startsWith('って呼んで')) {
-			let friend = this.ai.friends.findOne({
-				userId: msg.userId
-			});
-
-			if (friend == null) {
-				friend = this.ai.friends.insertOne({
-					userId: msg.userId
-				});
-			}
-
 			const name = msg.text.match(/^(.+?)って呼んで/)[1];
 
 			if (name.length > 10) {
@@ -41,13 +31,12 @@ export default class CoreModule implements IModule {
 				name.endsWith('様');
 
 			if (withSan) {
-				friend.name = name;
-				this.ai.friends.update(friend);
+				msg.friend.name = name;
+				this.ai.friends.update(msg.friend);
 				msg.reply(serifs.core.setNameOk.replace('{name}', name));
 			} else {
 				msg.reply(serifs.core.san).then(reply => {
 					this.ai.subscribeReply(this, msg.userId, msg.isMessage, msg.isMessage ? msg.userId : reply.id, {
-						friend: friend,
 						name: name
 					});
 				});
@@ -55,24 +44,16 @@ export default class CoreModule implements IModule {
 
 			return true;
 		} else if (msg.text.includes('おはよう')) {
-			const friend = this.ai.friends.findOne({
-				userId: msg.userId
-			});
-
-			if (friend && friend.name) {
-				msg.reply(serifs.core.goodMorningWithName.replace('{name}', friend.name));
+			if (msg.friend.name) {
+				msg.reply(serifs.core.goodMorningWithName.replace('{name}', msg.friend.name));
 			} else {
 				msg.reply(serifs.core.goodMorning);
 			}
 
 			return true;
 		} else if (msg.text.includes('おやすみ')) {
-			const friend = this.ai.friends.findOne({
-				userId: msg.userId
-			});
-
-			if (friend && friend.name) {
-				msg.reply(serifs.core.goodNightWithName.replace('{name}', friend.name));
+			if (msg.friend.name) {
+				msg.reply(serifs.core.goodNightWithName.replace('{name}', msg.friend.name));
 			} else {
 				msg.reply(serifs.core.goodNight);
 			}
@@ -87,16 +68,16 @@ export default class CoreModule implements IModule {
 		if (msg.text == null) return;
 
 		const done = () => {
-			this.ai.friends.update(data.friend);
-			msg.reply(serifs.core.setNameOk.replace('{name}', data.friend.name));
+			this.ai.friends.update(msg.friend);
+			msg.reply(serifs.core.setNameOk.replace('{name}', msg.friend.name));
 			this.ai.unsubscribeReply(this, msg.userId);
 		};
 
 		if (msg.text.includes('はい')) {
-			data.friend.name = data.name + 'さん';
+			msg.friend.name = data.name + 'さん';
 			done();
 		} else if (msg.text.includes('いいえ')) {
-			data.friend.name = data.name;
+			msg.friend.name = data.name;
 			done();
 		} else {
 			msg.reply(serifs.core.yesOrNo).then(reply => {
diff --git a/src/modules/timer/index.ts b/src/modules/timer/index.ts
index 50cd33b..2ebd005 100644
--- a/src/modules/timer/index.ts
+++ b/src/modules/timer/index.ts
@@ -35,7 +35,7 @@ export default class TimerModule implements IModule {
 				const str = `${hours ? hoursQuery[0] : ''}${minutes ? minutesQuery[0] : ''}${seconds ? secondsQuery[0] : ''}`;
 
 				setTimeout(() => {
-					const name = this.ai.getName(msg.userId);
+					const name = msg.friend.name;
 					this.ai.sendMessage(msg.userId, {
 						text: name ? serifs.timer.notifyWithName.replace('{time}', str).replace('{name}', name) : serifs.timer.notify.replace('{time}', str)
 					});