With Zhang Han's formation, naturally no one found out.
Keep one hand in order to prevent the ancestors of the Chu family from being stronger. To put it bluntly, it is the formation used to escape.
If there is only one Patriarch Chu, Zhang Han is not worried about the early stages of the Body Fit Realm, but he is afraid that the Chu Patriarch, who is nominally at the peak of the Body Body, will break through to the Dacheng Stage.