C671 Lessons

"Dr. Yun, is there really no other way?" After Old Master Zhang heard the conversation between Yun Xiuqing and his son, he was also very scared. Old Master Zhang was scared just thinking about it.

"I'm just giving you guys something to prepare in advance. If there really is no other way, you have to start the operation. If you don't do it, then go ahead and do it for free