diff --git a/.gitignore b/.gitignore
index 8c3b883..a7b211e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 config.json
 built
 node_modules
+memory.json
diff --git a/src/ai.ts b/src/ai.ts
index a492257..f8ac972 100644
--- a/src/ai.ts
+++ b/src/ai.ts
@@ -1,12 +1,12 @@
 // AI CORE
 
+import * as loki from 'lokijs';
 import * as WebSocket from 'ws';
 import * as request from 'request-promise-native';
 import serifs from './serifs';
 import config from './config';
 import IModule from './module';
 import MessageLike from './message-like';
-import { contexts } from './memory';
 const ReconnectingWebSocket = require('../node_modules/reconnecting-websocket/dist/reconnecting-websocket-cjs.js');
 
 /**
@@ -27,9 +27,40 @@ export default class 藍 {
 
 	private modules: IModule[] = [];
 
+	public db: loki;
+
+	private contexts: loki.Collection<{
+		isMessage: boolean;
+		noteId?: string;
+		userId?: string;
+		module: string;
+		key: string;
+	}>;
+
 	constructor(account: any) {
 		this.account = account;
 
+		this.db = new loki('memory.json', {
+			autoload: true,
+			autosave: true,
+			autosaveInterval: 1000,
+			autoloadCallback: this.init
+		});
+	}
+
+	private init = () => {
+		//#region Init DB
+		this.contexts = this.db.getCollection('contexts');
+		if (this.contexts === null) {
+			this.contexts = this.db.addCollection('contexts', {
+				indices: ['key']
+			});
+		}
+		//#endregion
+
+		// Install modules
+		this.modules.forEach(m => m.install(this));
+
 		//#region Home stream
 		this.connection = new ReconnectingWebSocket(`${config.wsUrl}/?i=${config.i}`, [], {
 			WebSocket: WebSocket
@@ -74,7 +105,6 @@ export default class 藍 {
 	}
 
 	public install = (module: IModule) => {
-		module.install(this);
 		this.modules.push(module);
 	}
 
@@ -132,7 +162,7 @@ export default class 藍 {
 			}
 		}, 1000);
 
-		const context = !msg.isMessage && msg.replyId == null ? null : contexts.findOne(msg.isMessage ? {
+		const context = !msg.isMessage && msg.replyId == null ? null : this.contexts.findOne(msg.isMessage ? {
 			isMessage: true,
 			userId: msg.userId
 		} : {
@@ -170,7 +200,7 @@ export default class 藍 {
 	};
 
 	public subscribeReply = (module: IModule, key: string, isMessage: boolean, id: string) => {
-		contexts.insertOne(isMessage ? {
+		this.contexts.insertOne(isMessage ? {
 			isMessage: true,
 			userId: id,
 			module: module.name,
@@ -184,7 +214,7 @@ export default class 藍 {
 	}
 
 	public unsubscribeReply = (module: IModule, key: string) => {
-		contexts.findAndRemove({
+		this.contexts.findAndRemove({
 			key: key,
 			module: module.name
 		});
diff --git a/src/memory.ts b/src/memory.ts
deleted file mode 100644
index 0b748b0..0000000
--- a/src/memory.ts
+++ /dev/null
@@ -1,17 +0,0 @@
-// 藍の記憶
-
-import * as loki from 'lokijs';
-
-const db = new loki('ai');
-
-export default db;
-
-export const contexts = db.addCollection<{
-	isMessage: boolean;
-	noteId?: string;
-	userId?: string;
-	module: string;
-	key: string;
-}>('contexts', {
-	indices: ['key']
-});
diff --git a/src/modules/fortune/index.ts b/src/modules/fortune/index.ts
index 12fd3c9..35b2313 100644
--- a/src/modules/fortune/index.ts
+++ b/src/modules/fortune/index.ts
@@ -30,7 +30,7 @@ export default class FortuneModule implements IModule {
 	public install = (ai: 藍) => { }
 
 	public onMention = (msg: MessageLike) => {
-		if (msg.text && (msg.text.includes('占') || msg.text.includes('運勢'))) {
+		if (msg.text && (msg.text.includes('占') || msg.text.includes('うらな') || msg.text.includes('運勢'))) {
 			const date = new Date();
 			const seed = `${date.getFullYear()}/${date.getMonth()}/${date.getDay()}@${msg.userId}`;
 			const rng = seedrandom(seed);
diff --git a/src/modules/guessing-game/index.ts b/src/modules/guessing-game/index.ts
index e8b619c..5ac982a 100644
--- a/src/modules/guessing-game/index.ts
+++ b/src/modules/guessing-game/index.ts
@@ -1,31 +1,37 @@
+import * as loki from 'lokijs';
 import 藍 from '../../ai';
 import IModule from '../../module';
 import MessageLike from '../../message-like';
 import serifs from '../../serifs';
-import db from '../../memory';
-
-export const guesses = db.addCollection<{
-	userId: string;
-	secret: number;
-	tries: number[];
-	isEnded: boolean;
-	startedAt: number;
-	endedAt: number;
-}>('guessingGame', {
-	indices: ['userId']
-});
 
 export default class GuessingGameModule implements IModule {
 	public name = 'guessingGame';
 	private ai: 藍;
+	private guesses: loki.Collection<{
+		userId: string;
+		secret: number;
+		tries: number[];
+		isEnded: boolean;
+		startedAt: number;
+		endedAt: number;
+	}>;
 
 	public install = (ai: 藍) => {
 		this.ai = ai;
+
+		//#region Init DB
+		this.guesses = this.ai.db.getCollection('guessingGame');
+		if (this.guesses === null) {
+			this.guesses = this.ai.db.addCollection('guessingGame', {
+				indices: ['userId']
+			});
+		}
+		//#endregion
 	}
 
 	public onMention = (msg: MessageLike) => {
 		if (msg.text && (msg.text.includes('数当て') || msg.text.includes('数あて'))) {
-			const exist = guesses.findOne({
+			const exist = this.guesses.findOne({
 				userId: msg.userId,
 				isEnded: false
 			});
@@ -42,7 +48,7 @@ export default class GuessingGameModule implements IModule {
 
 			const secret = Math.floor(Math.random() * 100);
 
-			guesses.insertOne({
+			this.guesses.insertOne({
 				userId: msg.userId,
 				secret: secret,
 				tries: [],
@@ -64,7 +70,7 @@ export default class GuessingGameModule implements IModule {
 	public onReplyThisModule = (msg: MessageLike) => {
 		if (msg.text == null) return;
 
-		const exist = guesses.findOne({
+		const exist = this.guesses.findOne({
 			userId: msg.userId,
 			isEnded: false
 		});
@@ -73,7 +79,7 @@ export default class GuessingGameModule implements IModule {
 			msg.reply(serifs.GUESSINGGAME_CANCEL);
 			exist.isEnded = true;
 			exist.endedAt = Date.now();
-			guesses.update(exist);
+			this.guesses.update(exist);
 			this.ai.unsubscribeReply(this, msg.userId);
 			return;
 		}
@@ -115,7 +121,7 @@ export default class GuessingGameModule implements IModule {
 				this.ai.unsubscribeReply(this, msg.userId);
 			}
 
-			guesses.update(exist);
+			this.guesses.update(exist);
 
 			msg.reply(text).then(reply => {
 				if (!end) {