diff --git a/src/index.ts b/src/index.ts
index 4a17ed3..966c5c3 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -15,6 +15,7 @@ import ServerModule from './modules/server';
 
 import * as request from 'request-promise-native';
 import IModule from './module';
+import FollowModule from './modules/follow';
 const promiseRetry = require('promise-retry');
 
 console.log('--- starting ai... ---');
@@ -38,7 +39,8 @@ promiseRetry(retry => {
 		new CoreModule(),
 		new PingModule(),
 		new WelcomeModule(),
-		new ServerModule()
+		new ServerModule(),
+		new FollowModule(),
 	];
 
 	if (config.keywordEnabled) modules.push(new KeywordModule());
diff --git a/src/modules/follow/index.ts b/src/modules/follow/index.ts
new file mode 100644
index 0000000..ad501bf
--- /dev/null
+++ b/src/modules/follow/index.ts
@@ -0,0 +1,35 @@
+import 藍 from '../../ai';
+import IModule from '../../module';
+import MessageLike from '../../message-like';
+import serifs from '../../serifs';
+
+export default class FollowModule implements IModule {
+	public readonly name = 'follow';
+	private ai: 藍;
+
+	public install = (ai: 藍) => { 
+		this.ai = ai;
+	}
+
+	public onMention = (msg: MessageLike) => {
+		if (msg.text && msg.text.includes('フォロー')) {
+				let user: any;
+				this.ai.api("users/show", {
+					userId: msg.userId,
+				}).then(u => {
+					user = u;
+					if (user.isFollowing) {
+						msg.reply(serifs.follow.alreadyFollowed);
+					} else {
+						this.ai.api("following/create", {
+							userId: msg.userId,
+						});
+						msg.reply(serifs.follow.ok);
+					}
+				});
+			return true;
+		} else {
+			return false;
+		}
+	}
+}
diff --git a/src/serifs.ts b/src/serifs.ts
index 55a52ba..bb6e336 100644
--- a/src/serifs.ts
+++ b/src/serifs.ts
@@ -260,6 +260,16 @@ export default {
 
 	server: {
 		cpu: 'サーバーの負荷が高そうです。大丈夫でしょうか...？'
+	},
+
+	follow: {
+		ok: 'フォローしました！',
+
+		requireMoreLove: 'もう少し仲良くなったらお願いできますか？',
+		
+		alreadyFollowed: 'えっ？既にあなたのことはフォローしていますよ！',
+		
+		ng: '嫌です...',
 	}
 };