I Am A Tiger King

The tiger clan is all female, and the one male born into it looks like a house cat. The clan decides his blood cannot be pure and treats him as a bastard. Chu Chen is that male. He came into this world of spirit beasts by accident, out of another life. At the point where he is about to lose everything, he awakens the Infinite Evolution System. Every spirit beast he devours pushes him further up, with no ceiling, through tiger and tiger king toward the ancestral divine beasts. The clan that pushed him out starts coming to him for protection. Later, when the heavenly realm moves to wipe out the world below, he goes against the heavenly order to stop it.