Hell, indeed holds too many secrets. The destruction of the empire, which cost Fourth Senior Brother his life, is a cause and effect that must be understood, but now is not the time. Although he has broken into the half-sage realm now, and is confident in dealing with saints, the strength of saints varies. The heritage of the destruction empire is probably extraordinary. Besides, whether it is the first sage demon or the first battle general Lan Yu, they are just following orders.
How terrifying would the emperor of the destruction empire be? A force that could exist under the watchful eyes of the master of the grand destruction must be extraordinary.
