In a world where everyone is born with magical potential, Kei Hayato is a “Zero”—a man with no power. Shunned and overlooked, his life changes when a deadly accident in a forbidden dungeon awakens a unique ability: the power to reset anything—magic, injuries, even the very laws of reality.
But this gift draws the attention of ancient gods and ruthless organizations who seek to control him. To survive, Kei must uncover the truth behind the dungeons and face forces beyond imagination. Sometimes, breaking the rules is the only way to rewrite your fate.