C779 Insight plan

Xu Zhengguo didn't explain anything to Zhuang Dashan because this kind of thing didn't need to be explained to him.

Since Zhuang Dashan was a survivor of Operation Ox-Snake, and had always been feeling guilty about this matter, it could be seen that Zhuang Dashan could never forget what happened that year. He must have also investigated some of the information on Operation Ox-Snake