diff --git a/BlueArchiveUID/bauid_guide/get_char.py b/BlueArchiveUID/bauid_guide/get_char.py
index 764f88a..019066f 100644
--- a/BlueArchiveUID/bauid_guide/get_char.py
+++ b/BlueArchiveUID/bauid_guide/get_char.py
@@ -13,6 +13,10 @@
 
 async def get_hehedi_char_img(name: str) -> Optional[str]:
     name = alias_to_char_name(name)
+    return await _get_hehedi_char_img(name)
+
+
+async def _get_hehedi_char_img(name: str) -> Optional[str]:
     path = HEHEDI_CHAR_GUIDE_PATH / f'{name}.jpg'
     if path.exists():
         return await convert_img(path)
diff --git a/BlueArchiveUID/bauid_info/draw_user_info_pic.py b/BlueArchiveUID/bauid_info/draw_user_info_pic.py
index 9778d07..8e69301 100644
--- a/BlueArchiveUID/bauid_info/draw_user_info_pic.py
+++ b/BlueArchiveUID/bauid_info/draw_user_info_pic.py
@@ -3,6 +3,7 @@
 
 from PIL import Image, ImageDraw
 from gsuid_core.models import Event
+from gsuid_core.utils.cache import gs_cache
 from gsuid_core.utils.image.convert import convert_img
 from gsuid_core.utils.fonts.fonts import core_font as cf
 from gsuid_core.utils.image.image_tools import (
@@ -158,6 +159,7 @@ def get_bg(w: int, h: int):
     return img
 
 
+@gs_cache()
 async def draw_user_info_img(
     _fcode: str, ev: Event, user_id: str
 ) -> Union[str, bytes]:
diff --git a/BlueArchiveUID/bauid_ranklist/draw_rank_pic.py b/BlueArchiveUID/bauid_ranklist/draw_rank_pic.py
index 4d4f8cc..71e5ebb 100644
--- a/BlueArchiveUID/bauid_ranklist/draw_rank_pic.py
+++ b/BlueArchiveUID/bauid_ranklist/draw_rank_pic.py
@@ -2,6 +2,7 @@
 from typing import Union
 
 from PIL import Image, ImageDraw
+from gsuid_core.utils.cache import gs_cache
 from gsuid_core.utils.image.convert import convert_img
 from gsuid_core.utils.fonts.fonts import core_font as cf
 
@@ -27,6 +28,11 @@ def get_color(rank_key: int):
 
 async def draw_rank_pic(student: str) -> Union[bytes, str]:
     student_id = student_name_to_id(student)
+    return await _draw_rank_pic(student_id)
+
+
+@gs_cache()
+async def _draw_rank_pic(student_id: str) -> Union[bytes, str]:
     if student_id == '9999':
         return '要查询的角色不存在或别名未收录, 请尝试使用完整名字。'