The book explains that there are actually two kinds of beastmen.
One is the beastmen created by the Beastman God Gush, with low foreheads, faces like pigs, and long tusks protruding from their lower jaws. They always appear as hunchbacked, barbaric marauders and are called Gush Beastmen.
The other kind is the offspring of those who have undergone beastification. The ancestors of these beastified people were originally normal humanoids: humans, elves, dwarves, etc. They had their own civilizations but were infected by the Beastification Curse secretly spread by the Beastman God Gush. As their bodies mutated into beasts, they also completely forgot their past, became dominated by their bestial nature, and turned into slaves of the Gush Beastmen.
At that time, the Beastification Curse could also be transmitted through beastified people.
Lately, after the Great Sage Chen Mian integrated the various universes, and the Beastman God Gush fell, the Beastman Curse was lifted.
