diff --git a/src/ai.ts b/src/ai.ts
index 3589e67..b800eb9 100644
--- a/src/ai.ts
+++ b/src/ai.ts
@@ -11,6 +11,7 @@ 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;
@@ -49,14 +50,17 @@ export default class 藍 {
 	constructor(account: User, ready: (run: Function) => void) {
 		this.account = account;
 
+		this.log('Lodaing the memory...');
+
 		this.db = new loki('memory.json', {
 			autoload: true,
 			autosave: true,
 			autosaveInterval: 1000,
 			autoloadCallback: err => {
 				if (err) {
-					this.log(chalk.red(`Failed to load DB: ${err}`));
+					this.log(chalk.red(`Failed to load the memory: ${err}`));
 				} else {
+					this.log(chalk.green('The memory loaded successfully'));
 					ready(this.run);
 				}
 			}
@@ -65,7 +69,7 @@ export default class 藍 {
 
 	@autobind
 	public log(msg: string) {
-		console.log(`[AiOS]: ${msg}`);
+		log(chalk`[{magenta AiOS}]: ${msg}`);
 	}
 
 	@autobind
@@ -122,7 +126,7 @@ export default class 藍 {
 
 	@autobind
 	private onMention(msg: MessageLike) {
-		this.log(`mention received: ${msg.id}`);
+		this.log(chalk.gray(`<<< An message received: ${chalk.underline(msg.id)}`));
 
 		const context = !msg.isMessage && msg.replyId == null ? null : this.contexts.findOne(msg.isMessage ? {
 			isMessage: true,
diff --git a/src/friend.ts b/src/friend.ts
index 6b76073..ebad8e0 100644
--- a/src/friend.ts
+++ b/src/friend.ts
@@ -1,3 +1,4 @@
+import autobind from 'autobind-decorator';
 import 藍 from './ai';
 import IModule from './module';
 import getDate from './utils/get-date';
@@ -52,12 +53,14 @@ export default class Friend {
 		}
 	}
 
-	public updateUser = (user: User) => {
+	@autobind
+	public updateUser(user: User) {
 		this.doc.user = user;
 		this.save();
 	}
 
-	public getPerModulesData = (module: IModule) => {
+	@autobind
+	public getPerModulesData(module: IModule) {
 		if (this.doc.perModulesData == null) {
 			this.doc.perModulesData = {};
 			this.doc.perModulesData[module.name] = {};
@@ -70,7 +73,8 @@ export default class Friend {
 		return this.doc.perModulesData[module.name];
 	}
 
-	public setPerModulesData = (module: IModule, data: any) => {
+	@autobind
+	public setPerModulesData(module: IModule, data: any) {
 		if (this.doc.perModulesData == null) {
 			this.doc.perModulesData = {};
 		}
@@ -80,7 +84,8 @@ export default class Friend {
 		this.save();
 	}
 
-	public incLove = () => {
+	@autobind
+	public incLove() {
 		const today = getDate();
 
 		if (this.doc.lastLoveIncrementedAt != today) {
@@ -101,7 +106,8 @@ export default class Friend {
 		this.save();
 	}
 
-	public decLove = () => {
+	@autobind
+	public decLove() {
 		if (this.doc.love == null) this.doc.love = 0;
 		this.doc.love--;
 
@@ -116,12 +122,14 @@ export default class Friend {
 		this.save();
 	}
 
-	public updateName = (name: string) => {
+	@autobind
+	public updateName(name: string) {
 		this.doc.name = name;
 		this.save();
 	}
 
-	public save = () => {
+	@autobind
+	public save() {
 		this.ai.friends.update(this.doc);
 	}
 }
diff --git a/src/index.ts b/src/index.ts
index 4cea891..aa15b8d 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,5 +1,6 @@
 import 藍 from './ai';
 import config from './config';
+import _log from './log';
 
 import CoreModule from './modules/core';
 import BirthdayModule from './modules/birthday';
@@ -21,13 +22,13 @@ import * as request from 'request-promise-native';
 const promiseRetry = require('promise-retry');
 
 function log(msg: string): void {
-	console.log(`[Boot]: ${msg}`);
+	_log(`[Boot]: ${msg}`);
 }
 
 log(chalk.bold('Ai v1.0'));
 
 promiseRetry(retry => {
-	log(`Account fetching... >>> ${config.host}`);
+	log(`Account fetching... (${config.host})`);
 	return request.post(`${config.apiUrl}/i`, {
 		json: {
 			i: config.i
diff --git a/src/log.ts b/src/log.ts
new file mode 100644
index 0000000..ef58a2d
--- /dev/null
+++ b/src/log.ts
@@ -0,0 +1,9 @@
+export default function(msg: string) {
+	const now = new Date();
+	const date = `${zeroPad(now.getHours())}:${zeroPad(now.getMinutes())}:${zeroPad(now.getSeconds())}`;
+	console.log(`${date} ${msg}`);
+}
+
+function zeroPad(num: number, length: number = 2): string {
+	return ('0000000000' + num).slice(-length);
+}
diff --git a/src/message-like.ts b/src/message-like.ts
index 4751f3b..d4128f6 100644
--- a/src/message-like.ts
+++ b/src/message-like.ts
@@ -1,8 +1,10 @@
+import autobind from 'autobind-decorator';
 import 藍 from './ai';
 import Friend from './friend';
 import { User } from './misskey/user';
 import includes from './utils/includes';
 import or from './utils/or';
+import chalk from 'chalk';
 const delay = require('timeout-as-promise');
 
 export default class MessageLike {
@@ -47,10 +49,11 @@ export default class MessageLike {
 		});
 	}
 
-	public reply = async (text: string, cw?: string) => {
+	@autobind
+	public async reply(text: string, cw?: string) {
 		if (text == null) return;
 
-		this.ai.log(`sending reply of ${this.id} ...`);
+		this.ai.log(`>>> Sending reply to ${chalk.underline(this.id)}`);
 
 		await delay(2000);
 
@@ -67,11 +70,13 @@ export default class MessageLike {
 		}
 	}
 
-	public includes = (words: string[]): boolean => {
+	@autobind
+	public includes(words: string[]): boolean {
 		return includes(this.text, words);
 	}
 
-	public or = (words: (string | RegExp)[]): boolean => {
+	@autobind
+	public or(words: (string | RegExp)[]): boolean {
 		return or(this.text, words);
 	}
 }