The Whole world suddenly underwent great changes animals and plants alike started to evolve into terrifying beast. spatial tears appeard around the world scary beasts wents out to hunt. Humans discovered that they can gain strength through awakening. special powers appeard.
Beasts rule the world.
there are spatial cracks that lead through other worlds and beasts go out from them.
Humans built a footholds to hidden islands to survive.
They discovered they can awaken or cultivate to get stronger.