Monster Paradise

Eight hundred years ago, the skies across the world opened three thousand void gates, resembling three thousand eyes of different colors suspended in the sky, and countless monsters surged out from them. There were giant species, capable of destroying cities and walls with a single blow, huge in size, and feeding on human flesh; there were parasitic species that infested human bodies, absorbed nutrients, and controlled humans to serve them; there were blood-devouring species that lurked in human cities, disguised as humans, and fed on human blood... Overnight, humanity became the lowest link in the food chain.