A high school student, Yūki Jinbo, was living every day steeped in violence and humiliation. But one day, a “Quest Board” appeared before his eyes, granting him the skill Ability Hunt as a reward. It was an extraordinary power that let him steal everything from others—their talent, memories, physical strength. Yūki begins climbing the steps of revenge alone, taking power from those who hurt him. But behind that power lies a hidden truth: a “proxy war” where gods use humans as pawns to fight their battles. “I’ll sell my soul to the devil if that’s what it takes to get revenge…!” Awaiting him at the end of his vengeance is a supernatural battle over the gods’ chosen champion. An ordinary boy transforms into something that can surpass even the gods themselves—