diff --git a/main.py b/main.py
index 9a500be..ea64d84 100644
--- a/main.py
+++ b/main.py
@@ -12,6 +12,8 @@ from telegram.ext import (ApplicationBuilder, CallbackQueryHandler, CommandHandl
 import common
 import utils.regex as regex
 from utils.logger import get_logger
+from utils.net import NetClient
+from utils.pixiv import ProcessPixiv
 from utils.telegram import Telegram
 
 if TYPE_CHECKING:
@@ -208,9 +210,9 @@ async def post_init(application: Application) -> None:
     DESCRIPTION = "A bot to fetch tweets from Twitter."
     await application.bot.set_my_description(DESCRIPTION)
     await application.bot.set_my_short_description(DESCRIPTION)
-    Telegram.init_client()
+    NetClient.init_client()
     if common.PIXIV_REFRESH_TOKEN:
-        await Pixiv.init_client(common.PIXIV_REFRESH_TOKEN)
+        await ProcessPixiv.init_client(common.PIXIV_REFRESH_TOKEN)
 
 
 async def post_stop(application: Application) -> None:
@@ -218,7 +220,7 @@ async def post_stop(application: Application) -> None:
 
 
 async def post_shutdown(application: Application) -> None:
-    await Telegram.close_client()
+    await NetClient.close_client()
 
 
 def main():
diff --git a/utils/telegram.py b/utils/telegram.py
index c060503..583f013 100644
--- a/utils/telegram.py
+++ b/utils/telegram.py
@@ -1,12 +1,12 @@
 from __future__ import annotations
 
-from .net import NetClient
+from common import PIXIV_REFRESH_TOKEN
 from .pixiv import TelegramPixiv
 from .regex import pixiv_url, x_url
 from .tweet import TelegramTweet
 
 
-class Telegram(NetClient):
+class Telegram:
     def __init__(self, url: str):
         self._url = url
 
@@ -14,7 +14,7 @@ class Telegram(NetClient):
         if x_url.match(self._url):
             async with TelegramTweet(self._url) as tweet:
                 return tweet
-        elif pixiv_url.match(self._url):
+        elif PIXIV_REFRESH_TOKEN and pixiv_url.match(self._url):
             async with TelegramPixiv(self._url) as pixiv:
                 return pixiv