diff --git a/nonebot_plugin_marshoai/azure.py b/nonebot_plugin_marshoai/azure.py
index 5e5a841..022d89f 100644
--- a/nonebot_plugin_marshoai/azure.py
+++ b/nonebot_plugin_marshoai/azure.py
@@ -58,6 +58,7 @@ token = config.marshoai_token
 endpoint = config.marshoai_azure_endpoint
 client = ChatCompletionsClient(endpoint=endpoint, credential=AzureKeyCredential(token))
 target_list = []
+loaded_target_list = []
 
 
 @add_usermsg_cmd.handle()
@@ -90,7 +91,7 @@ async def contexts(target: MsgTarget):
 async def save_context(target: MsgTarget, arg: Message = CommandArg()):
     contexts_data = context.build(target.id, target.private)[1:]
     if msg := arg.extract_plain_text():
-        await save_context_to_json(msg, contexts_data, "context")
+        await save_context_to_json(msg, contexts_data, "contexts")
         await save_context_cmd.finish("已保存上下文")
 
 
@@ -98,7 +99,7 @@ async def save_context(target: MsgTarget, arg: Message = CommandArg()):
 async def load_context(target: MsgTarget, arg: Message = CommandArg()):
     if msg := arg.extract_plain_text():
         context.set_context(
-            await load_context_from_json(msg, "context"), target.id, target.private
+            await load_context_from_json(msg, "contexts"), target.id, target.private
         )
         await load_context_cmd.finish("已加载并覆盖上下文")
 
@@ -142,7 +143,7 @@ async def refresh_data():
 
 @marsho_cmd.handle()
 async def marsho(target: MsgTarget, event: Event, text: Optional[UniMsg] = None):
-    global target_list
+    global target_list, loaded_target_list
     if not text:
         # 发送说明
         await UniMessage(metadata.usage + "\n当前使用的模型：" + model_name).send()
@@ -180,9 +181,9 @@ async def marsho(target: MsgTarget, event: Event, text: Optional[UniMsg] = None)
                 elif config.marshoai_enable_support_image_tip:
                     await UniMessage("*此模型不支持图片处理。").send()
         context_msg = context.build(target.id, target.private)
-        if not context_msg:
-            context_msg = list(await load_context_from_json(f"back_up_context_{target.id}", "context/backup"))
-            await save_context_to_json(f"back_up_context_{target.id}", [], "context/backup")
+        if not context_msg and target.id not in loaded_target_list:
+            context_msg = list(await load_context_from_json(f"back_up_context_{target.id}", "contexts/backup"))
+            loaded_target_list.append(target.id)
         msg_prompt = get_prompt()
         context_msg = [msg_prompt] + context_msg
         print(str(context_msg))
@@ -255,4 +256,4 @@ async def save_context():
     for target_info in target_list:
         target_id, target_private = target_info
         contexts_data = context.build(target_id, target_private)[1:]
-        await save_context_to_json(f"back_up_context_{target_id}", contexts_data, "context/backup")
+        await save_context_to_json(f"back_up_context_{target_id}", contexts_data, "contexts/backup")