diff --git a/.env.example b/.env.example
index 7fde1d8..488632c 100644
--- a/.env.example
+++ b/.env.example
@@ -1,4 +1,4 @@
 ENVIRONMENT=dev
 PORT=21333
-
+DATABASE_PATH="./data/database.db"
 ENABLE_CONSOLE=true
diff --git a/.gitignore b/.gitignore
index 9f2daec..8337d30 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,6 @@
 /.env
 /data
 
-__pycache__
\ No newline at end of file
+__pycache__
+
+*.db
\ No newline at end of file
diff --git a/bot.py b/bot.py
index 782c870..e4c56ca 100644
--- a/bot.py
+++ b/bot.py
@@ -10,6 +10,7 @@ from nonebot.adapters.onebot.v11 import Adapter as OnebotAdapter
 from konabot.common.log import init_logger
 from konabot.common.nb.exc import BotExceptionMessage
 from konabot.common.path import LOG_PATH
+from konabot.core.preinit import preinit
 
 dotenv.load_dotenv()
 env = os.environ.get("ENVIRONMENT", "prod")
@@ -48,6 +49,9 @@ def main():
     nonebot.load_plugins("konabot/plugins")
     nonebot.load_plugin("nonebot_plugin_analysis_bilibili")
 
+    # 预加载
+    preinit("konabot/plugins")
+
     nonebot.run()
 
 if __name__ == "__main__":
diff --git a/konabot/common/database/__init__.py b/konabot/common/database/__init__.py
new file mode 100644
index 0000000..2a44469
--- /dev/null
+++ b/konabot/common/database/__init__.py
@@ -0,0 +1,64 @@
+import os
+import sqlite3
+from typing import List, Dict, Any, Optional
+
+class DatabaseManager:
+    """超级无敌神奇的数据库！"""
+    
+    @classmethod
+    def query(cls, query: str, params: Optional[tuple] = None) -> List[Dict[str, Any]]:
+        """执行查询语句并返回结果"""
+        conn = sqlite3.connect(os.environ.get('DATABASE_PATH', './data/database.db'))
+        cursor = conn.cursor()
+        cursor.execute(query, params or ())
+        columns = [description[0] for description in cursor.description]
+        results = [dict(zip(columns, row)) for row in cursor.fetchall()]
+        cursor.close()
+        conn.close()
+        return results
+    
+    @classmethod
+    def query_by_sql_file(cls, file_path: str, params: Optional[tuple] = None) -> List[Dict[str, Any]]:
+        """从 SQL 文件中读取查询语句并执行"""
+        with open(file_path, 'r', encoding='utf-8') as f:
+            query = f.read()
+        return cls.query(query, params)
+
+    @classmethod
+    def execute(cls, command: str, params: Optional[tuple] = None) -> None:
+        """执行非查询语句"""
+        conn = sqlite3.connect(os.environ.get('DATABASE_PATH', './data/database.db'))
+        cursor = conn.cursor()
+        cursor.execute(command, params or ())
+        conn.commit()
+        cursor.close()
+        conn.close()
+
+    @classmethod
+    def execute_by_sql_file(cls, file_path: str, params: Optional[tuple] = None) -> None:
+        """从 SQL 文件中读取非查询语句并执行"""
+        with open(file_path, 'r', encoding='utf-8') as f:
+            command = f.read()
+        # 按照需要执行多条语句
+        commands = command.split(';')
+        for cmd in commands:
+            cmd = cmd.strip()
+            if cmd:
+                cls.execute(cmd, params)
+    
+    @classmethod
+    def execute_many(cls, command: str, seq_of_params: List[tuple]) -> None:
+        """执行多条非查询语句"""
+        conn = sqlite3.connect(os.environ.get('DATABASE_PATH', './data/database.db'))
+        cursor = conn.cursor()
+        cursor.executemany(command, seq_of_params)
+        conn.commit()
+        cursor.close()
+        conn.close()
+
+    @classmethod
+    def execute_many_values_by_sql_file(cls, file_path: str, seq_of_params: List[tuple]) -> None:
+        """从 SQL 文件中读取一条语句，但是被不同值同时执行"""
+        with open(file_path, 'r', encoding='utf-8') as f:
+            command = f.read()
+        cls.execute_many(command, seq_of_params)
\ No newline at end of file
diff --git a/konabot/core/preinit.py b/konabot/core/preinit.py
new file mode 100644
index 0000000..ccfd3f7
--- /dev/null
+++ b/konabot/core/preinit.py
@@ -0,0 +1,15 @@
+from pathlib import Path
+
+from nonebot import logger
+
+def preinit(path: str):
+    # 执行预初始化，递归找到位于对应路径内文件名为 __preinit__.py 的所有文件都会被执行
+    dir_path = Path(path)
+    for item in dir_path.iterdir():
+        if item.is_dir():
+            preinit(item)
+        elif item.is_file() and item.name == "__preinit__.py":
+            # 动态导入该文件以执行预初始化代码
+            module_path = str(item.with_suffix("")).replace("/", ".").replace("\\", ".")
+            __import__(module_path)
+            logger.info(f"Preinitialized module: {module_path}")
\ No newline at end of file
diff --git a/konabot/plugins/air_conditioner/__init__.py b/konabot/plugins/air_conditioner/__init__.py
index 4f921fe..e148954 100644
--- a/konabot/plugins/air_conditioner/__init__.py
+++ b/konabot/plugins/air_conditioner/__init__.py
@@ -7,16 +7,19 @@ from nonebot.adapters.discord.event import MessageEvent as DiscordMessageEvent
 from nonebot_plugin_alconna import Alconna, AlconnaMatcher, Args, UniMessage, on_alconna
 from PIL import Image
 import numpy as np
+from konabot.common.database import DatabaseManager
 from konabot.common.longtask import DepLongTaskTarget
 from konabot.common.path import ASSETS_PATH
 from konabot.common.web_render import WebRenderer
 from konabot.plugins.air_conditioner.ac import AirConditioner, CrashType, generate_ac_image, wiggle_transform
-
+from pathlib import Path
 import random
 import math
 
+ROOT_PATH = Path(__file__).resolve().parent
+
 def get_ac(id: str) -> AirConditioner:
-    ac = AirConditioner.air_conditioners.get(id)
+    ac = AirConditioner.get_ac(id)
     if ac is None:
         ac = AirConditioner(id)
     return ac
@@ -61,7 +64,7 @@ evt = on_alconna(Alconna(
 async def _(event: BaseEvent, target: DepLongTaskTarget):
     id = target.channel_id
     ac = get_ac(id)
-    ac.on = True
+    ac.update_ac(state=True)
     await send_ac_image(evt, ac)
 
 evt = on_alconna(Alconna(
@@ -72,7 +75,7 @@ evt = on_alconna(Alconna(
 async def _(event: BaseEvent, target: DepLongTaskTarget):
     id = target.channel_id
     ac = get_ac(id)
-    ac.on = False
+    ac.update_ac(state=False)
     await send_ac_image(evt, ac)
 
 evt = on_alconna(Alconna(
@@ -82,6 +85,8 @@ evt = on_alconna(Alconna(
 
 @evt.handle()
 async def _(event: BaseEvent, target: DepLongTaskTarget, temp: Optional[Union[int, float]] = 1):
+    if temp is None:
+        temp = 1
     if temp <= 0:
         return
     id = target.channel_id
@@ -89,7 +94,7 @@ async def _(event: BaseEvent, target: DepLongTaskTarget, temp: Optional[Union[in
     if not ac.on or ac.burnt == True or ac.frozen == True:
         await send_ac_image(evt, ac)
         return
-    ac.temperature += temp
+    ac.update_ac(temperature_delta=temp)
     if ac.temperature > 40:
         # 根据温度随机出是否爆炸，40度开始，呈指数增长
         possibility = -math.e ** ((40-ac.temperature) / 50) + 1
@@ -115,6 +120,8 @@ evt = on_alconna(Alconna(
 
 @evt.handle()
 async def _(event: BaseEvent, target: DepLongTaskTarget, temp: Optional[Union[int, float]] = 1):
+    if temp is None:
+        temp = 1
     if temp <= 0:
         return
     id = target.channel_id
@@ -122,7 +129,7 @@ async def _(event: BaseEvent, target: DepLongTaskTarget, temp: Optional[Union[in
     if not ac.on or ac.burnt == True or ac.frozen == True:
         await send_ac_image(evt, ac)
         return
-    ac.temperature -= temp
+    ac.update_ac(temperature_delta=-temp)
     if ac.temperature < 0:
         # 根据温度随机出是否冻结，0度开始，呈指数增长
         possibility = -math.e ** (ac.temperature / 50) + 1
@@ -141,6 +148,16 @@ async def _(event: BaseEvent, target: DepLongTaskTarget):
     ac.change_ac()
     await send_ac_image(evt, ac)
 
+def query_number_ranking(id: str) -> tuple[int, int]:
+    result = DatabaseManager.query_by_sql_file(
+        ROOT_PATH / "sql" / "query_crash_and_rank.sql",
+        (id,id)
+    )
+    if len(result) == 0:
+        return 0, 0
+    else:
+        return result[0].values()
+
 evt = on_alconna(Alconna(
     "空调炸炸排行榜",
 ), use_cmd_start=True, use_cmd_sep=False, skip_for_unmatch=True)
@@ -148,8 +165,9 @@ evt = on_alconna(Alconna(
 @evt.handle()
 async def _(event: BaseEvent, target: DepLongTaskTarget):
     id = target.channel_id
-    ac = get_ac(id)
-    number, ranking = ac.get_crashes_and_ranking()
+    # ac = get_ac(id)
+    # number, ranking = ac.get_crashes_and_ranking()
+    number, ranking = query_number_ranking(id)
     params = {
         "number": number,
         "ranking": ranking
diff --git a/konabot/plugins/air_conditioner/__preinit__.py b/konabot/plugins/air_conditioner/__preinit__.py
new file mode 100644
index 0000000..67054a0
--- /dev/null
+++ b/konabot/plugins/air_conditioner/__preinit__.py
@@ -0,0 +1,9 @@
+# 预初始化，只要是导入本插件包就会执行这里的代码
+from pathlib import Path
+
+from konabot.common.database import DatabaseManager
+
+# 初始化数据库表
+DatabaseManager.execute_by_sql_file(
+    Path(__file__).resolve().parent / "sql" / "create_table.sql"
+)
diff --git a/konabot/plugins/air_conditioner/ac.py b/konabot/plugins/air_conditioner/ac.py
index 6614784..9be7619 100644
--- a/konabot/plugins/air_conditioner/ac.py
+++ b/konabot/plugins/air_conditioner/ac.py
@@ -1,20 +1,71 @@
 from enum import Enum
 from io import BytesIO
+from pathlib import Path
 
 import cv2
 import numpy as np
 from PIL import Image, ImageDraw, ImageFont
 
+from konabot.common.database import DatabaseManager
 from konabot.common.path import ASSETS_PATH, FONTS_PATH
 from konabot.common.path import DATA_PATH
 import json
 
+ROOT_PATH = Path(__file__).resolve().parent
+
 class CrashType(Enum):
     BURNT = 0
     FROZEN = 1
 
 class AirConditioner:
-    air_conditioners: dict[str, "AirConditioner"] = {}
+    @classmethod
+    def get_ac(cls, id: str) -> 'AirConditioner':
+        result = DatabaseManager.query_by_sql_file(ROOT_PATH / "sql" / "query_ac.sql", (id,))
+        if len(result) == 0:
+            ac = cls.create_ac(id)
+            return ac
+        ac_data = result[0]
+        ac = AirConditioner(id)
+        ac.on = bool(ac_data["on"])
+        ac.temperature = float(ac_data["temperature"])
+        ac.burnt = bool(ac_data["burnt"])
+        ac.frozen = bool(ac_data["frozen"])
+        return ac
+
+    @classmethod
+    def create_ac(cls, id: str) -> 'AirConditioner':
+        ac = AirConditioner(id)
+        DatabaseManager.execute_by_sql_file(
+            ROOT_PATH / "sql" / "insert_ac.sql",
+            (id, ac.on, ac.temperature, ac.burnt, ac.frozen)
+        )
+        return ac
+    
+    def update_ac(self, state: bool = None, temperature_delta: float = None, burnt: bool = None, frozen: bool = None) -> 'AirConditioner':
+        if state is not None:
+            self.on = state
+        if temperature_delta is not None:
+            self.temperature += temperature_delta
+        if burnt is not None:
+            self.burnt = burnt
+        if frozen is not None:
+            self.frozen = frozen
+        DatabaseManager.execute_by_sql_file(
+            ROOT_PATH / "sql" / "update_ac.sql",
+            (self.on, self.temperature, self.burnt, self.frozen, self.id)
+        )
+        return self
+
+    def change_ac(self) -> 'AirConditioner':
+        self.on = False
+        self.temperature = 24
+        self.burnt = False
+        self.frozen = False
+        DatabaseManager.execute_by_sql_file(
+            ROOT_PATH / "sql" / "update_ac.sql",
+            (self.on, self.temperature, self.burnt, self.frozen, self.id)
+        )
+        return self
 
     def __init__(self, id: str) -> None:
         self.id = id
@@ -22,45 +73,40 @@ class AirConditioner:
         self.temperature = 24  # 默认温度
         self.burnt = False
         self.frozen = False
-        AirConditioner.air_conditioners[id] = self
-
-    def change_ac(self):
-        self.burnt = False
-        self.frozen = False
-        self.on = False
-        self.temperature = 24  # 重置为默认温度
 
     def broke_ac(self, crash_type: CrashType):
         '''
-        让空调坏掉，并保存数据
-
+        让空调坏掉
         :param crash_type: CrashType 枚举，表示空调坏掉的类型
         '''
         match crash_type:
             case CrashType.BURNT:
-                self.burnt = True
+                self.update_ac(burnt=True)
             case CrashType.FROZEN:
-                self.frozen = True
-        self.save_crash_data(crash_type)
+                self.update_ac(frozen=True)
+        DatabaseManager.execute_by_sql_file(
+            ROOT_PATH / "sql" / "insert_crash.sql",
+            (self.id, crash_type.value)
+        )
 
-    def save_crash_data(self, crash_type: CrashType):
-        '''
-        如果空调爆炸了，就往本地的 ac_crash_data.json 里该 id 的记录加一
-        '''
-        data_file = DATA_PATH / "ac_crash_data.json"
-        crash_data = {}
-        if data_file.exists():
-            with open(data_file, "r", encoding="utf-8") as f:
-                crash_data = json.load(f)
-        if self.id not in crash_data:
-            crash_data[self.id] = {"burnt": 0, "frozen": 0}
-        match crash_type:
-            case CrashType.BURNT:
-                crash_data[self.id]["burnt"] += 1
-            case CrashType.FROZEN:
-                crash_data[self.id]["frozen"] += 1
-        with open(data_file, "w", encoding="utf-8") as f:
-            json.dump(crash_data, f, ensure_ascii=False, indent=4)
+    # def save_crash_data(self, crash_type: CrashType):
+    #     '''
+    #     如果空调爆炸了，就往本地的 ac_crash_data.json 里该 id 的记录加一
+    #     '''
+    #     data_file = DATA_PATH / "ac_crash_data.json"
+    #     crash_data = {}
+    #     if data_file.exists():
+    #         with open(data_file, "r", encoding="utf-8") as f:
+    #             crash_data = json.load(f)
+    #     if self.id not in crash_data:
+    #         crash_data[self.id] = {"burnt": 0, "frozen": 0}
+    #     match crash_type:
+    #         case CrashType.BURNT:
+    #             crash_data[self.id]["burnt"] += 1
+    #         case CrashType.FROZEN:
+    #             crash_data[self.id]["frozen"] += 1
+    #     with open(data_file, "w", encoding="utf-8") as f:
+    #         json.dump(crash_data, f, ensure_ascii=False, indent=4)
 
     def get_crashes_and_ranking(self) -> tuple[int, int]:
         '''
diff --git a/konabot/plugins/air_conditioner/sql/create_table.sql b/konabot/plugins/air_conditioner/sql/create_table.sql
new file mode 100644
index 0000000..5203e23
--- /dev/null
+++ b/konabot/plugins/air_conditioner/sql/create_table.sql
@@ -0,0 +1,15 @@
+-- 创建所有表
+CREATE TABLE IF NOT EXISTS air_conditioner (
+    id VARCHAR(128) PRIMARY KEY, 
+    'on' BOOLEAN NOT NULL, 
+    temperature REAL NOT NULL, 
+    burnt BOOLEAN NOT NULL, 
+    frozen BOOLEAN NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS air_conditioner_crash_log (
+    id VARCHAR(128) NOT NULL,
+    crash_type INT NOT NULL,
+    timestamp DATETIME NOT NULL,
+    FOREIGN KEY (id) REFERENCES air_conditioner(id)
+);
\ No newline at end of file
diff --git a/konabot/plugins/air_conditioner/sql/insert_ac.sql b/konabot/plugins/air_conditioner/sql/insert_ac.sql
new file mode 100644
index 0000000..3fb1c76
--- /dev/null
+++ b/konabot/plugins/air_conditioner/sql/insert_ac.sql
@@ -0,0 +1,3 @@
+-- 插入一台新空调
+INSERT INTO air_conditioner (id, 'on', temperature, burnt, frozen)
+VALUES (?, ?, ?, ?, ?);
\ No newline at end of file
diff --git a/konabot/plugins/air_conditioner/sql/insert_crash.sql b/konabot/plugins/air_conditioner/sql/insert_crash.sql
new file mode 100644
index 0000000..aae3898
--- /dev/null
+++ b/konabot/plugins/air_conditioner/sql/insert_crash.sql
@@ -0,0 +1,3 @@
+-- 插入一条空调爆炸记录
+INSERT INTO air_conditioner_crash_log (id, crash_type, timestamp)
+VALUES (?, ?, CURRENT_TIMESTAMP);
\ No newline at end of file
diff --git a/konabot/plugins/air_conditioner/sql/query_ac.sql b/konabot/plugins/air_conditioner/sql/query_ac.sql
new file mode 100644
index 0000000..db957d3
--- /dev/null
+++ b/konabot/plugins/air_conditioner/sql/query_ac.sql
@@ -0,0 +1,4 @@
+-- 查询空调状态，如果没有就插入一条新的记录
+SELECT *
+FROM air_conditioner
+WHERE id = ?;
\ No newline at end of file
diff --git a/konabot/plugins/air_conditioner/sql/query_crash_and_rank.sql b/konabot/plugins/air_conditioner/sql/query_crash_and_rank.sql
new file mode 100644
index 0000000..c180638
--- /dev/null
+++ b/konabot/plugins/air_conditioner/sql/query_crash_and_rank.sql
@@ -0,0 +1,23 @@
+-- 从 air_conditioner_crash_log 表中获取指定 id 损坏的次数以及损坏次数的排名
+SELECT crash_count, crash_rank
+FROM (
+    SELECT id,
+           COUNT(*) AS crash_count,
+           RANK() OVER (ORDER BY COUNT(*) DESC) AS crash_rank
+    FROM air_conditioner_crash_log
+    GROUP BY id
+) AS ranked_data
+WHERE id = ?
+-- 如果该 id 没有损坏记录，则返回 0 次损坏和对应的最后一名
+UNION
+SELECT 0 AS crash_count,
+    (SELECT COUNT(DISTINCT id) + 1 FROM air_conditioner_crash_log) AS crash_rank
+FROM (
+    SELECT DISTINCT id
+    FROM air_conditioner_crash_log
+) AS ranked_data
+WHERE NOT EXISTS (
+    SELECT 1
+    FROM air_conditioner_crash_log
+    WHERE id = ?
+);
\ No newline at end of file
diff --git a/konabot/plugins/air_conditioner/sql/update_ac.sql b/konabot/plugins/air_conditioner/sql/update_ac.sql
new file mode 100644
index 0000000..df9145e
--- /dev/null
+++ b/konabot/plugins/air_conditioner/sql/update_ac.sql
@@ -0,0 +1,4 @@
+-- 更新空调状态
+UPDATE air_conditioner
+SET 'on' = ?, temperature = ?, burnt = ?, frozen = ?
+WHERE id = ?;
\ No newline at end of file
diff --git a/konabot/plugins/idiomgame/__init__.py b/konabot/plugins/idiomgame/__init__.py
index ee4e26c..36710aa 100644
--- a/konabot/plugins/idiomgame/__init__.py
+++ b/konabot/plugins/idiomgame/__init__.py
@@ -18,11 +18,14 @@ from nonebot_plugin_alconna import (
     on_alconna,
 )
 
+from konabot.common.database import DatabaseManager
 from konabot.common.longtask import DepLongTaskTarget
 from konabot.common.path import ASSETS_PATH
 
 from konabot.common.llm import get_llm
 
+ROOT_PATH = Path(__file__).resolve().parent
+
 DATA_DIR = Path(__file__).parent.parent.parent.parent / "data"
 
 DATA_FILE_PATH = (
@@ -94,18 +97,19 @@ class IdiomGameLLM:
     
     @classmethod
     async def storage_idiom(cls, idiom: str):
-        # 将 idiom 存入本地文件以备后续分析
-        with open(DATA_DIR / "idiom_llm_storage.txt", "a", encoding="utf-8") as f:
-            f.write(idiom + "\n")
-        IdiomGame.append_into_word_list(idiom)
+        # 将 idiom 存入数据库
+        DatabaseManager.execute_by_sql_file(
+            ROOT_PATH / "sql" / "insert_custom_word.sql",
+            (idiom,)
+        )
         
 
 class IdiomGame:
-    ALL_WORDS = []  # 所有四字词语
-    ALL_IDIOMS = []  # 所有成语
+    # ALL_WORDS = []  # 所有四字词语
+    # ALL_IDIOMS = []  # 所有成语
     INSTANCE_LIST: dict[str, "IdiomGame"] = {}  # 群号对应的游戏实例
-    IDIOM_FIRST_CHAR = {}  # 所有成语包括词语的首字字典
-    AVALIABLE_IDIOM_FIRST_CHAR = {} # 真正有效的成语首字字典
+    # IDIOM_FIRST_CHAR = {}  # 所有成语包括词语的首字字典
+    # AVALIABLE_IDIOM_FIRST_CHAR = {} # 真正有效的成语首字字典
 
     __inited = False
 
@@ -130,11 +134,10 @@ class IdiomGame:
         '''
         将一个新词加入到词语列表中
         '''
-        if word not in cls.ALL_WORDS:
-            cls.ALL_WORDS.append(word)
-            if word[0] not in cls.IDIOM_FIRST_CHAR:
-                cls.IDIOM_FIRST_CHAR[word[0]] = []
-            cls.IDIOM_FIRST_CHAR[word[0]].append(word)
+        DatabaseManager.execute_by_sql_file(
+            ROOT_PATH / "sql" / "insert_custom_word.sql",
+            (word,)
+        )
 
     def be_able_to_play(self) -> bool:
         if self.last_play_date != datetime.date.today():
@@ -145,11 +148,17 @@ class IdiomGame:
             return True
         return False
 
+    @staticmethod
+    def random_idiom() -> str:
+        return DatabaseManager.query_by_sql_file(
+            ROOT_PATH / "sql" / "random_choose_idiom.sql"
+        )[0]["idiom"]
+
     def choose_start_idiom(self) -> str:
         """
         随机选择一个成语作为起始成语
         """
-        self.last_idiom = secrets.choice(IdiomGame.ALL_IDIOMS)
+        self.last_idiom = IdiomGame.random_idiom()
         self.last_char = self.last_idiom[-1]
         if not self.is_nextable(self.last_char):
             self.choose_start_idiom()
@@ -208,7 +217,7 @@ class IdiomGame:
         return self.last_idiom
 
     def _skip_idiom_async(self) -> str:
-        self.last_idiom = secrets.choice(IdiomGame.ALL_IDIOMS)
+        self.last_idiom = IdiomGame.random_idiom()
         self.last_char = self.last_idiom[-1]
         if not self.is_nextable(self.last_char):
             self._skip_idiom_async()
@@ -228,8 +237,11 @@ class IdiomGame:
         """
         判断是否有成语可以接
         """
-        return last_char in IdiomGame.AVALIABLE_IDIOM_FIRST_CHAR
-    
+        return DatabaseManager.query_by_sql_file(
+            ROOT_PATH / "sql" / "is_nextable.sql",
+            (last_char,)
+        )[0]["DEED"] == 1
+   
     def add_already_idiom(self, idiom: str):
         if idiom in self.already_idioms:
             self.already_idioms[idiom] += 1
@@ -259,7 +271,12 @@ class IdiomGame:
         if idiom[0] != self.last_char:
             state.append(TryVerifyState.WRONG_FIRST_CHAR)
             return state
-        if idiom not in IdiomGame.ALL_IDIOMS and idiom not in IdiomGame.ALL_WORDS:
+        # 成语是否存在
+        result = DatabaseManager.query_by_sql_file(
+            ROOT_PATH / "sql" / "query_idiom.sql",
+            (idiom, idiom, idiom)
+        )[0]["status"]
+        if result == -1:
             logger.info(f"用户 {user_id} 发送了未知词语 {idiom}，正在使用 LLM 进行验证")
             try:
                 if not await IdiomGameLLM.verify_idiom_with_llm(idiom):
@@ -281,7 +298,7 @@ class IdiomGame:
         self.last_idiom = idiom
         self.last_char = idiom[-1]
         self.add_score(user_id, 1 * score_k) # 先加 1 分
-        if idiom in IdiomGame.ALL_IDIOMS:
+        if result == 1:
             state.append(TryVerifyState.VERIFIED_AND_REAL)
             self.add_score(user_id, 4 * score_k) # 再加 4 分
         self.remain_rounds -= 1
@@ -319,14 +336,21 @@ class IdiomGame:
     @classmethod
     def random_idiom_starting_with(cls, first_char: str) -> Optional[str]:
         cls.init_lexicon()
-        if first_char not in cls.AVALIABLE_IDIOM_FIRST_CHAR:
+        result = DatabaseManager.query_by_sql_file(
+            ROOT_PATH / "sql" / "query_idiom_start_with.sql",
+            (first_char,)
+        )
+        if len(result) == 0:
             return None
-        return secrets.choice(cls.AVALIABLE_IDIOM_FIRST_CHAR[first_char])
+        return result[0]["idiom"]
 
     @classmethod
     def init_lexicon(cls):
         if cls.__inited:
             return
+        DatabaseManager.execute_by_sql_file(
+            ROOT_PATH / "sql" / "create_table.sql"
+        )  # 确保数据库初始化
         cls.__inited = True
 
         # 成语大表
@@ -334,11 +358,12 @@ class IdiomGame:
             ALL_IDIOMS_INFOS = json.load(f)
 
         # 词语大表
+        ALL_WORDS = []
         with open(ASSETS_PATH / "lexicon" / "ci.json", "r", encoding="utf-8") as f:
             jsonData = json.load(f)
-            cls.ALL_WORDS = [item["ci"] for item in jsonData]
-            logger.debug(f"Loaded {len(cls.ALL_WORDS)} words from ci.json")
-            logger.debug(f"Sample words: {cls.ALL_WORDS[:5]}")
+            ALL_WORDS = [item["ci"] for item in jsonData]
+            logger.debug(f"Loaded {len(ALL_WORDS)} words from ci.json")
+            logger.debug(f"Sample words: {ALL_WORDS[:5]}")
 
         COMMON_WORDS = []
         # 读取 COMMON 词语大表
@@ -389,29 +414,44 @@ class IdiomGame:
         logger.debug(f"Loaded additional {len(LOCAL_LLM_WORDS)} words from idiom_llm_storage.txt")
 
         # 只有成语的大表
-        cls.ALL_IDIOMS = [idiom["word"] for idiom in ALL_IDIOMS_INFOS] + THUOCL_IDIOMS
-        cls.ALL_IDIOMS = list(set(cls.ALL_IDIOMS))  # 去重
+        ALL_IDIOMS = [idiom["word"] for idiom in ALL_IDIOMS_INFOS] + THUOCL_IDIOMS
+        ALL_IDIOMS = list(set(ALL_IDIOMS))  # 去重
+        # 批量插入数据库
+        DatabaseManager.execute_many_values_by_sql_file(
+            ROOT_PATH / "sql" / "insert_idiom.sql",
+            [(idiom,) for idiom in ALL_IDIOMS]
+        )
+        
 
         # 其他四字词语表，仅表示可以有这个词
-        cls.ALL_WORDS = (
-            [word for word in cls.ALL_WORDS if len(word) == 4]
+        ALL_WORDS = (
+            [word for word in ALL_WORDS if len(word) == 4]
             + THUOCL_WORDS
             + COMMON_WORDS
-            + LOCAL_LLM_WORDS
         )
-        cls.ALL_WORDS = list(set(cls.ALL_WORDS))  # 去重
+        # 插入数据库
+        DatabaseManager.execute_many_values_by_sql_file(
+            ROOT_PATH / "sql" / "insert_word.sql",
+            [(word,) for word in ALL_WORDS]
+        )
 
-        # 根据成语大表，划分出成语首字字典
-        for idiom in cls.ALL_IDIOMS + cls.ALL_WORDS:
-            if idiom[0] not in cls.IDIOM_FIRST_CHAR:
-                cls.IDIOM_FIRST_CHAR[idiom[0]] = []
-            cls.IDIOM_FIRST_CHAR[idiom[0]].append(idiom)
+        # 自定义词语 LOCAL_LLM_WORDS 插入数据库，兼容用
+        DatabaseManager.execute_many_values_by_sql_file(
+            ROOT_PATH / "sql" / "insert_custom_word.sql",
+            [(word,) for word in LOCAL_LLM_WORDS]
+        )
 
-        # 根据真正的成语大表，划分出有效成语首字字典
-        for idiom in cls.ALL_IDIOMS:
-            if idiom[0] not in cls.AVALIABLE_IDIOM_FIRST_CHAR:
-                cls.AVALIABLE_IDIOM_FIRST_CHAR[idiom[0]] = []
-            cls.AVALIABLE_IDIOM_FIRST_CHAR[idiom[0]].append(idiom)
+        # # 根据成语大表，划分出成语首字字典
+        # for idiom in cls.ALL_IDIOMS + cls.ALL_WORDS:
+        #     if idiom[0] not in cls.IDIOM_FIRST_CHAR:
+        #         cls.IDIOM_FIRST_CHAR[idiom[0]] = []
+        #     cls.IDIOM_FIRST_CHAR[idiom[0]].append(idiom)
+
+        # # 根据真正的成语大表，划分出有效成语首字字典
+        # for idiom in cls.ALL_IDIOMS:
+        #     if idiom[0] not in cls.AVALIABLE_IDIOM_FIRST_CHAR:
+        #         cls.AVALIABLE_IDIOM_FIRST_CHAR[idiom[0]] = []
+        #     cls.AVALIABLE_IDIOM_FIRST_CHAR[idiom[0]].append(idiom)
 
 
 evt = on_alconna(
@@ -514,7 +554,9 @@ async def end_game(event: BaseEvent, group_id: str):
         for line in history_lines:
             result_text += line + "\n"
     await evt.send(await result_text.export())
-    instance.clear_score_board()
+    # instance.clear_score_board()
+    # 将实例删除
+    del IdiomGame.INSTANCE_LIST[group_id]
 
 
 evt = on_alconna(
diff --git a/konabot/plugins/idiomgame/sql/create_table.sql b/konabot/plugins/idiomgame/sql/create_table.sql
new file mode 100644
index 0000000..5d38580
--- /dev/null
+++ b/konabot/plugins/idiomgame/sql/create_table.sql
@@ -0,0 +1,15 @@
+-- 创建成语大表
+CREATE TABLE IF NOT EXISTS all_idioms (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    idiom VARCHAR(128) NOT NULL UNIQUE
+);
+
+CREATE TABLE IF NOT EXISTS all_words (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    word VARCHAR(128) NOT NULL UNIQUE
+);
+
+CREATE TABLE IF NOT EXISTS custom_words (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    word VARCHAR(128) NOT NULL UNIQUE
+);
\ No newline at end of file
diff --git a/konabot/plugins/idiomgame/sql/insert_custom_word.sql b/konabot/plugins/idiomgame/sql/insert_custom_word.sql
new file mode 100644
index 0000000..212c8a2
--- /dev/null
+++ b/konabot/plugins/idiomgame/sql/insert_custom_word.sql
@@ -0,0 +1,3 @@
+-- 插入自定义词
+INSERT OR IGNORE INTO custom_words (word)
+VALUES (?);
\ No newline at end of file
diff --git a/konabot/plugins/idiomgame/sql/insert_idiom.sql b/konabot/plugins/idiomgame/sql/insert_idiom.sql
new file mode 100644
index 0000000..eaedae8
--- /dev/null
+++ b/konabot/plugins/idiomgame/sql/insert_idiom.sql
@@ -0,0 +1,3 @@
+-- 插入成语大表，避免重复插入
+INSERT OR IGNORE INTO all_idioms (idiom)
+VALUES (?);
\ No newline at end of file
diff --git a/konabot/plugins/idiomgame/sql/insert_word.sql b/konabot/plugins/idiomgame/sql/insert_word.sql
new file mode 100644
index 0000000..b085aab
--- /dev/null
+++ b/konabot/plugins/idiomgame/sql/insert_word.sql
@@ -0,0 +1,3 @@
+-- 插入词
+INSERT OR IGNORE INTO all_words (word)
+VALUES (?);
\ No newline at end of file
diff --git a/konabot/plugins/idiomgame/sql/is_nextable.sql b/konabot/plugins/idiomgame/sql/is_nextable.sql
new file mode 100644
index 0000000..a7bbeb1
--- /dev/null
+++ b/konabot/plugins/idiomgame/sql/is_nextable.sql
@@ -0,0 +1,5 @@
+-- 查询是否有以 xx 开头的成语，有则返回真，否则假
+SELECT EXISTS(
+    SELECT 1 FROM all_idioms
+    WHERE idiom LIKE ? || '%'
+) AS DEED;
diff --git a/konabot/plugins/idiomgame/sql/query_idiom.sql b/konabot/plugins/idiomgame/sql/query_idiom.sql
new file mode 100644
index 0000000..fa3bf93
--- /dev/null
+++ b/konabot/plugins/idiomgame/sql/query_idiom.sql
@@ -0,0 +1,7 @@
+-- 查询成语是否在 all_idioms 中，如果存在则返回 1，否则再判断是否在 custom_words 或 all_words 中，存在则返回 0，否则返回 -1
+SELECT 
+    CASE
+        WHEN EXISTS (SELECT 1 FROM all_idioms WHERE idiom = ?) THEN 1
+        WHEN EXISTS (SELECT 1 FROM custom_words WHERE word = ?) OR EXISTS (SELECT 1 FROM all_words WHERE word = ?) THEN 0
+        ELSE -1
+    END AS status;
\ No newline at end of file
diff --git a/konabot/plugins/idiomgame/sql/query_idiom_start_with.sql b/konabot/plugins/idiomgame/sql/query_idiom_start_with.sql
new file mode 100644
index 0000000..a6e8fc6
--- /dev/null
+++ b/konabot/plugins/idiomgame/sql/query_idiom_start_with.sql
@@ -0,0 +1,4 @@
+-- 查询以 xx 开头的成语，随机打乱后只取第一个
+SELECT idiom FROM all_idioms
+WHERE idiom LIKE ? || '%'
+ORDER BY RANDOM() LIMIT 1;
\ No newline at end of file
diff --git a/konabot/plugins/idiomgame/sql/random_choose_idiom.sql b/konabot/plugins/idiomgame/sql/random_choose_idiom.sql
new file mode 100644
index 0000000..f706092
--- /dev/null
+++ b/konabot/plugins/idiomgame/sql/random_choose_idiom.sql
@@ -0,0 +1,2 @@
+-- 随机从 all_idioms 表中选择一个成语
+SELECT idiom FROM all_idioms ORDER BY RANDOM() LIMIT 1;
\ No newline at end of file