An orchestrated betrayal caused the heir of a wealthy family to fall into the mouth of a giant beast. His life, which should have come to an end, unexpectedly awakened in the form of a weak mutated giant lizard. He bound to the devouring evolution system and could only become stronger by constantly hunting and avenging the betrayer. Crisis followed one after another, with humans surrounding him, mutated beasts surrounding him, and ancient beings subjecting him to a cruel soul contract, forcing him to surrender sacrifices. He transformed step by step in danger, met powerful giant beast allies, broke free from the shackles of the contract, and secretly guarded his family. He accumulated strength between humans and monsters, and when his strength reached its peak, he settled all conspiracies.
