The Strongest Villain of All Time Has Returned

Rumer—a planet whose name is as enigmatic as its endless, monster-ravaged battlefields—is a living hell where colossal titans clash and human life is pitifully frail. Lee Seo-joon, a mere human test subject cast into this inferno, survived only by grafting monster flesh onto his own body through his unique ability, 'Fusion.' After becoming a monster himself and slaying Aion, the final boss and sovereign of Rumer, the System recognized him as the new master and granted him passage home. Now the apex predator of that nightmare realm returns to his original world, ready to descend upon those who await him.