diff --git a/src/friend.ts b/src/friend.ts
index 70c48d9..d1c46ee 100644
--- a/src/friend.ts
+++ b/src/friend.ts
@@ -3,6 +3,7 @@ import 藍 from './ai';
 import IModule from './module';
 import getDate from './utils/get-date';
 import { User } from './misskey/user';
+import { itemPrefixes, items, and } from './vocabulary';
 
 export type FriendDoc = {
 	userId: string;
@@ -13,6 +14,7 @@ export type FriendDoc = {
 	todayLoveIncrements?: number;
 	perModulesData?: any;
 	married?: boolean;
+	transferCode?: string;
 };
 
 export default class Friend {
@@ -137,4 +139,38 @@ export default class Friend {
 	public save() {
 		this.ai.friends.update(this.doc);
 	}
+
+	@autobind
+	public generateTransferCode(): string {
+		let code = '';
+		code += itemPrefixes[Math.floor(Math.random() * itemPrefixes.length)];
+		code += items[Math.floor(Math.random() * items.length)];
+		code += and[Math.floor(Math.random() * and.length)];
+		code += itemPrefixes[Math.floor(Math.random() * itemPrefixes.length)];
+		code += items[Math.floor(Math.random() * items.length)];
+
+		this.doc.transferCode = code;
+		this.save();
+
+		return code;
+	}
+
+	@autobind
+	public transferMemory(code: string): boolean {
+		const src = this.ai.friends.findOne({
+			transferCode: code
+		});
+
+		if (src == null) return false;
+
+		this.doc.name = src.name;
+		this.doc.love = src.love;
+		this.doc.married = src.married;
+		this.doc.perModulesData = src.perModulesData;
+		this.save();
+
+		// TODO: 合言葉を忘れる
+
+		return true;
+	}
 }
diff --git a/src/modules/chart/index.ts b/src/modules/chart/index.ts
index 531c7d1..6bcb849 100644
--- a/src/modules/chart/index.ts
+++ b/src/modules/chart/index.ts
@@ -3,7 +3,7 @@ import Module from '../../module';
 import serifs from '../../serifs';
 import Message from '../../message';
 import { renderChart } from './render-chart';
-import { items } from '../fortune/vocabulary';
+import { items } from '../../vocabulary';
 import config from '../../config';
 
 export default class extends Module {
diff --git a/src/modules/core/index.ts b/src/modules/core/index.ts
index 6148ff3..4f147e8 100644
--- a/src/modules/core/index.ts
+++ b/src/modules/core/index.ts
@@ -25,6 +25,8 @@ export default class extends Module {
 		if (!msg.text) return false;
 
 		return (
+			this.transferBegin(msg) ||
+			this.transferEnd(msg) ||
 			this.setName(msg) ||
 			this.greet(msg) ||
 			this.erait(msg) ||
@@ -43,6 +45,42 @@ export default class extends Module {
 		);
 	}
 
+	@autobind
+	private transferBegin(msg: Message): boolean  {
+		if (!msg.text) return false;
+		if (!msg.includes(['引継', '引き継ぎ', '引越', '引っ越し'])) return false;
+
+		// メッセージのみ
+		if (!msg.isDm) {
+			msg.reply(serifs.core.transferNeedDm);
+			return true;
+		}
+
+		const code = msg.friend.generateTransferCode();
+
+		msg.reply(serifs.core.transferCode(code));
+
+		return true;
+	}
+
+	@autobind
+	private transferEnd(msg: Message): boolean  {
+		if (!msg.text) return false;
+		if (!msg.text.startsWith('「') || !msg.text.endsWith('」')) return false;
+
+		const code = msg.text.substring(1, msg.text.length - 1);
+
+		const succ = msg.friend.transferMemory(code);
+
+		if (succ) {
+			msg.reply(serifs.core.transferDone(msg.friend.name));
+		} else {
+			msg.reply(serifs.core.transferFailed);
+		}
+
+		return true;
+	}
+
 	@autobind
 	private setName(msg: Message): boolean  {
 		if (!msg.text) return false;
diff --git a/src/modules/fortune/index.ts b/src/modules/fortune/index.ts
index 1cfe86d..84bb778 100644
--- a/src/modules/fortune/index.ts
+++ b/src/modules/fortune/index.ts
@@ -3,7 +3,7 @@ import Module from '../../module';
 import Message from '../../message';
 import serifs from '../../serifs';
 import * as seedrandom from 'seedrandom';
-import { blessing, itemPrefixes, items, and } from './vocabulary';
+import { blessing, itemPrefixes, items, and } from '../../vocabulary';
 
 export default class extends Module {
 	public readonly name = 'fortune';
diff --git a/src/serifs.ts b/src/serifs.ts
index 2cfb502..6103ca3 100644
--- a/src/serifs.ts
+++ b/src/serifs.ts
@@ -145,6 +145,14 @@ export default {
 		},
 
 		shutdown: '私まだ眠くないですよ...？',
+
+		transferNeedDm: 'わかりました、それはチャットで話しませんか？',
+
+		transferCode: code => `わかりました。\n合言葉は「${code}」です！`,
+
+		transferFailed: 'うーん、合言葉が間違ってませんか...？',
+
+		transferDone: name => name ? `はっ...！ おかえりなさい、${name}！` : `はっ...！ おかえりなさい！`,
 	},
 
 	keyword: {
diff --git a/src/modules/fortune/vocabulary.ts b/src/vocabulary.ts
similarity index 100%
rename from src/modules/fortune/vocabulary.ts
rename to src/vocabulary.ts