The migration of Yaochi should be after the start. At that time, the ancient people were already asleep, and Yaochi was guarded by Xidi Tower. Unless the forbidden area is supreme, it is difficult to threaten Yaochi, because Yaochi must seal the Great Sage Johnson before it can fight a quasi-imperial city. The only explanation is civil strife. The bodies of Xidi and Dacheng Eucharist are like two kinds of elixirs, a congenital fetus and a barren Eucharist. Refining their Xue Jing is very likely to break the restrictions of heaven and earth and become an emperor! It is also possible that Xidi and Dacheng Eucharist had the idea of gods, which brought disaster to Yaochi and Xidi Tower. They could not fight, so they moved after paying the price of residual pain!