Ryan Summers is transported to the Beastmaster World, where he's stuck as a despised, F-rank Muckhide Serpent. On the brink of death, he activates the Devouring Evolution System. Starting as a Shade Wolf, he devours enemies, evolves into a Creation Dragon, and becomes a force that can shake the world. With humanity fighting a global Beast Horde and powerful invaders, Ryan devours gods, rises to ultimate power, and leads the charge to save the world.