Zane Grant, Young Heir of the Military Command, is betrayed and killed by his lover and brother. Reborn as a wolf cub on the Wild Steppe, he activates the Infinite Devour Evolution System. He evolves by devouring, reunites with his father General Tyrone Grant, uncovers Chaos Energy spawned global Mutated Beast Hordes, settles scores with enemies, evolves into the Omniscient Divine Hound, a Chaos Divine Beast, travels to destroy Chaos Seed sources, protecting the world.