After awakening in the Shrine Memory World, Han Fei took over Gao Cheng's body, controlling his actions.
In some respects, he and Gao Cheng have many similarities—endless greed, the ambition to slay gods, and hatred for this decaying world—but ultimately, he is not Gao Cheng.
Just like when Han Fei once occupied Fu Yi's body, in the final moments, Fu Yi still emerged to cause chaos. He never truly trusted Han Fei, merely using Han Fei to ease his relationships with all his lovers, waiting for the right time to enjoy the final results.
Perhaps Gao Cheng had similar plans at the beginning, but during his fusion process with Han Fei, he gradually made completely different choices from Fu Yi.
In Gao Cheng's eyes, Han Fei could achieve better than himself. To satisfy his ambition and fulfill his ultimate wish, he could completely entrust everything of himself to Han Fei.
Gao Cheng's hatred for the Divine Spirit was so intense that he was willing to pay any price to destroy it.
