Han Fei didn't know the layout of the former Building Chief, and he also wouldn't completely trust Fu Sheng.
The reason was simple, the path chosen by Han Fei after retrieving the Black Box was different from that of Fu Sheng.
Fu Sheng wanted to completely destroy the Deep World, sealing everything away from reality, while Han Fei aimed to destroy what should be destroyed, and redeem what should be redeemed.
If Fu Sheng was considering issues purely from his own perspective, then Han Fei was looking at things from a standpoint of fairness.
At that time, Han Fei, who was in a state of unconsciousness, followed his instincts and opened two different sides of the Black Box, unleashing the devil while also embracing hope.
No one had ever dared to do what Han Fei did, not even a Building Chief.