diff --git a/astrbot/core/pipeline/process_stage/method/llm_request.py b/astrbot/core/pipeline/process_stage/method/llm_request.py
index d13a101ef..b49cd6581 100644
--- a/astrbot/core/pipeline/process_stage/method/llm_request.py
+++ b/astrbot/core/pipeline/process_stage/method/llm_request.py
@@ -77,14 +77,21 @@ class LLMRequestSubStage(Stage):
             conversation_id = await self.conv_manager.get_curr_conversation_id(
                 event.unified_msg_origin
             )
+            req.session_id = event.unified_msg_origin
             if not conversation_id:
                 conversation_id = await self.conv_manager.new_conversation(
                     event.unified_msg_origin
                 )
-            req.session_id = event.unified_msg_origin
             conversation = await self.conv_manager.get_conversation(
                 event.unified_msg_origin, conversation_id
             )
+            if not conversation:
+                conversation_id = await self.conv_manager.new_conversation(
+                    event.unified_msg_origin
+                )
+                conversation = await self.conv_manager.get_conversation(
+                    event.unified_msg_origin, conversation_id
+                )
             req.conversation = conversation
             req.contexts = json.loads(conversation.history)