diff --git a/config-template.py b/config-template.py
index b368b6f2..20062827 100644
--- a/config-template.py
+++ b/config-template.py
@@ -1,5 +1,4 @@
 # 配置文件: 注释里标[必需]的参数必须修改, 其他参数根据需要修改, 但请勿删除
-
 import logging
 
 # [必需] Mirai的配置
@@ -25,12 +24,17 @@ openai_config = {
 admin_qq = 0
 
 # 敏感词过滤开关，以同样数量的*代替敏感词回复
-# 开启后可能会降低机器人的回复速度
 # 请在sensitive.json中添加敏感词
 sensitive_word_filter = True
 
+# 每个会话的预设信息，影响所有会话，无视指令重置
+# 可以通过这个字段指定某些情况的回复，可直接用自然语言描述指令
+# 例如: 如果我之后想获取帮助，请你说“输入!help获取帮助”
+# 可参考 https://github.com/PlexPt/awesome-chatgpt-prompts-zh
+default_prompt = ""
+
 # OpenAI的completion API的参数
-# 不了解的话请不要修改，具体请查看OpenAI的文档
+# 具体请查看OpenAI的文档
 completion_api_params = {
     "model": "text-davinci-003",
     "temperature": 0.6,  # 数值越低得到的回答越理性，取值范围[0, 1]
diff --git a/pkg/openai/session.py b/pkg/openai/session.py
index 1ec76f14..96d8bd6d 100644
--- a/pkg/openai/session.py
+++ b/pkg/openai/session.py
@@ -51,13 +51,19 @@ def dump_session(session_name: str):
         del sessions[session_name]
 
 
+# 从配置文件获取会话预设信息
+def get_default_prompt():
+    return "You:{}\nBot:好的\n".format(config.default_prompt) if hasattr(config, 'default_prompt') and \
+                                                                 config.default_prompt != "" else ''
+
+
 # 通用的OpenAI API交互session
 # session内部保留了对话的上下文，
 # 收到用户消息后，将上下文提交给OpenAI API生成回复
 class Session:
     name = ''
 
-    prompt = ''
+    prompt = get_default_prompt()
 
     user_name = 'You'
     bot_name = 'Bot'
@@ -100,12 +106,13 @@ class Session:
     def append(self, text: str) -> str:
         self.last_interact_timestamp = int(time.time())
 
-        max_length = config.prompt_submit_length if config.prompt_submit_length is not None else 1024
+        max_rounds = config.prompt_submit_round_amount if hasattr(config, 'prompt_submit_round_amount') else 7
+        max_length = config.prompt_submit_length if hasattr(config, "prompt_submit_length") else 1024
 
         # 向API请求补全
         response = pkg.openai.manager.get_inst().request_completion(self.cut_out(self.prompt + self.user_name + ':' +
                                                                                  text + '\n' + self.bot_name + ':',
-                                                                                 7, max_length), self.user_name + ':')
+                                                                                 max_rounds, max_length), self.user_name + ':')
 
         self.prompt += self.user_name + ':' + text + '\n' + self.bot_name + ':'
         # print(response)
@@ -154,7 +161,7 @@ class Session:
 
     # 持久化session
     def persistence(self):
-        if self.prompt == '':
+        if self.prompt == get_default_prompt():
             return
 
         db_inst = pkg.database.manager.get_inst()
@@ -169,14 +176,14 @@ class Session:
 
     # 重置session
     def reset(self, explicit: bool = False, expired: bool = False, schedule_new: bool = True):
-        if self.prompt != '':
+        if self.prompt != get_default_prompt():
             self.persistence()
             if explicit:
                 pkg.database.manager.get_inst().explicit_close_session(self.name, self.create_timestamp)
 
             if expired:
                 pkg.database.manager.get_inst().set_session_expired(self.name, self.create_timestamp)
-        self.prompt = ''
+        self.prompt = get_default_prompt()
         self.create_timestamp = int(time.time())
         self.last_interact_timestamp = int(time.time())
         self.just_switched_to_exist_session = False
diff --git a/pkg/qqbot/manager.py b/pkg/qqbot/manager.py
index 3318ed10..e9ee62e3 100644
--- a/pkg/qqbot/manager.py
+++ b/pkg/qqbot/manager.py
@@ -190,20 +190,21 @@ class QQBotManager:
             else:
                 processing.append("person_{}".format(event.sender.id))
 
-                # 超时则重试，重试超过次数则放弃
-                failed = 0
-                for i in range(self.retry):
-                    try:
-                        reply = self.process_message('person', event.sender.id, str(event.message_chain))
-                        break
-                    except FunctionTimedOut:
-                        failed += 1
-                        continue
+                try:
+                    # 超时则重试，重试超过次数则放弃
+                    failed = 0
+                    for i in range(self.retry):
+                        try:
+                            reply = self.process_message('person', event.sender.id, str(event.message_chain))
+                            break
+                        except FunctionTimedOut:
+                            failed += 1
+                            continue
 
-                if failed == self.retry:
-                    reply = "[bot]err:请求超时"
-
-                processing.remove("person_{}".format(event.sender.id))
+                    if failed == self.retry:
+                        reply = "[bot]err:请求超时"
+                finally:
+                    processing.remove("person_{}".format(event.sender.id))
 
         if reply != '':
             return await self.bot.send(event, reply)
@@ -225,20 +226,21 @@ class QQBotManager:
 
             processing.append("group_{}".format(event.sender.id))
 
-            # 超时则重试，重试超过次数则放弃
-            failed = 0
-            for i in range(self.retry):
-                try:
-                    reply = self.process_message('group', event.group.id, str(event.message_chain).strip())
-                    break
-                except FunctionTimedOut:
-                    failed += 1
-                    continue
+            try:
+                # 超时则重试，重试超过次数则放弃
+                failed = 0
+                for i in range(self.retry):
+                    try:
+                        reply = self.process_message('group', event.group.id, str(event.message_chain).strip())
+                        break
+                    except FunctionTimedOut:
+                        failed += 1
+                        continue
 
-            if failed == self.retry:
-                reply = "err:请求超时"
-
-            processing.remove("group_{}".format(event.sender.id))
+                if failed == self.retry:
+                    reply = "err:请求超时"
+            finally:
+                processing.remove("group_{}".format(event.sender.id))
 
         if reply != '':
             return await self.bot.send(event, reply)
diff --git a/sensitive.json b/sensitive.json
index dd7dfa2f..40ebc4df 100644
--- a/sensitive.json
+++ b/sensitive.json
@@ -33,7 +33,7 @@
     "中华民国",
     "pornhub",
     "Pornhub",
-    "youporn",
+    "[Yy]ou[Pp]orn",
     "porn",
     "Porn",
     "[Xx][Vv]ideos",