diff --git a/metadata/genshin.py b/metadata/genshin.py
index dae67322..53a4e7f2 100644
--- a/metadata/genshin.py
+++ b/metadata/genshin.py
@@ -2,41 +2,83 @@
 
 from __future__ import annotations
 
+from typing import Generic, Iterator, KeysView, TypeVar
+
 import ujson as json
 
 from utils.const import PROJECT_ROOT
 from utils.log import logger
-from utils.typedefs import JSONType, StrOrInt
+from utils.typedefs import StrOrInt
 
 __all__ = [
     'HONEY_DATA',
     'AVATAR_DATA', 'WEAPON_DATA', 'MATERIAL_DATA', 'ARTIFACT_DATA', 'NAMECARD_DATA',
-    'honey_id_to_game_id'
+    'honey_id_to_game_id',
+    'Data'
 ]
 
+K = TypeVar('K')
+V = TypeVar('V')
+
 data_dir = PROJECT_ROOT.joinpath('metadata/data/')
 data_dir.mkdir(parents=True, exist_ok=True)
 
-
-def _get_content(file_name: str) -> JSONType:
-    path = data_dir.joinpath(file_name).with_suffix('.json')
-    if not path.exists():
-        logger.error(
-            f"暂未找到名为 \"{file_name}.json\" 的 metadata , 请先使用 [yellow bold]/refresh_metadata[/] 命令下载",
-            extra={'markup': True}
-        )
-        return {}
-    with open(path, encoding='utf-8') as file:
-        return json.load(file)
+_cache = {}
 
 
-HONEY_DATA: dict[str, dict[StrOrInt, list[str | int]]] = _get_content('honey')
+class Data(dict, Generic[K, V]):
+    _dict: dict[K, V]
+    _file_name: str
 
-AVATAR_DATA: dict[str, dict[str, int | str | list[int]]] = _get_content('avatar')
-WEAPON_DATA: dict[str, dict[str, int | str]] = _get_content('weapon')
-MATERIAL_DATA: dict[str, dict[str, int | str]] = _get_content('material')
-ARTIFACT_DATA: dict[str, dict[str, int | str | list[int] | dict[str, str]]] = _get_content('reliquary')
-NAMECARD_DATA: dict[str, dict[str, int | str]] = _get_content('namecard')
+    @property
+    def data(self) -> dict[K, V]:
+        if not (result := _cache.get(self._file_name, None)):
+            self._dict = result
+            super(Data, self).__init__(result)
+        path = data_dir.joinpath(self._file_name).with_suffix('.json')
+        if not path.exists():
+            logger.error(
+                f"暂未找到名为 \"{self._file_name}.json\" 的 metadata , "
+                "请先使用 [yellow bold]/refresh_metadata[/] 命令下载",
+                extra={'markup': True}
+            )
+            self._dict = {}
+        with open(path, encoding='utf-8') as file:
+            self._dict = json.load(file)
+        _cache.update({self._file_name: self._dict})
+        return self._dict
+
+    def __init__(self, file_name: str):
+        self._file_name = file_name
+        self._dict = {}
+        super(Data, self).__init__()
+
+    def get(self, key: K) -> V | None:
+        return self.data.get(key)
+
+    def __getitem__(self, key: K) -> V:
+        return self.data.__getitem__(key)
+
+    def __setitem__(self, key: K, value: V) -> None:
+        return self.data.__setitem__(key, value)
+
+    def __delitem__(self, value: V) -> None:
+        self.data.__delitem__(value)
+
+    def __iter__(self) -> Iterator[K]:
+        return self.data.__iter__()
+
+    def keys(self) -> KeysView[K, V]:
+        return self.data.keys()
+
+
+HONEY_DATA: dict[str, dict[StrOrInt, list[str | int]]] = Data('honey')
+
+AVATAR_DATA: dict[str, dict[str, int | str | list[int]]] = Data('avatar')
+WEAPON_DATA: dict[str, dict[str, int | str]] = Data('weapon')
+MATERIAL_DATA: dict[str, dict[str, int | str]] = Data('material')
+ARTIFACT_DATA: dict[str, dict[str, int | str | list[int] | dict[str, str]]] = Data('reliquary')
+NAMECARD_DATA: dict[str, dict[str, int | str]] = Data('namecard')
 
 
 def honey_id_to_game_id(honey_id: str, item_type: str) -> str | None:
diff --git a/metadata/scripts/honey.py b/metadata/scripts/honey.py
index 9560abad..b6328544 100644
--- a/metadata/scripts/honey.py
+++ b/metadata/scripts/honey.py
@@ -136,11 +136,11 @@ async def get_namecard_data() -> DATA_TYPE:
 
     if not NAMECARD_DATA:
         # noinspection PyProtectedMember
-        from metadata.genshin import _get_content
+        from metadata.genshin import Data
         from metadata.scripts.metadatas import update_metadata_from_github
         await update_metadata_from_github()
         # noinspection PyPep8Naming
-        NAMECARD_DATA = _get_content('namecard')
+        NAMECARD_DATA = Data('namecard')
     url = HONEY_HOST.join("fam_nameplate/?lang=CHS")
     result = {}