Wei Cheng had observed throughout the two seconds when the Alien demons unleashed their Demon Flames, as well as the arrival of the Heavenly Demon's army.
Thanks to the Jade Slip of information, he had a basic understanding of the Heavenly Demons.
This includes the Heavenly Demons' subject and royal families, young existence, developed existence, mature existence, and Combined Path Body.
Even the Sky Monster's Soul was recorded in that Jade Slip of information. It could only be said that Chu Xianren was really profound and wise, and could be compared to the encyclopedia of the Cultivation World.
However, the strategic tactics of the Heavenly Demon's army are obviously fundamentally different from those of the Alien demons.
At least, the Alien demons have never overlooked the Lower Realm Earth, with their quick and targeted attacks at the foundations and weak points of the Cultivation World.
