In a modern era where "Conquerors" are revered as heroes for using special weaponry to repel humanity's natural enemy, "Monsters." Tendo Mogami spends his days enduring the humiliation of being constantly compared to his flawless younger brother, mocked and despised as the "Genius's Stain." But one day, pushed to the brink of death within a suddenly materialized Labyrinth, he inherits a "King's Weapon" from his brother. It is a power that infringes upon the very domain of the gods, allowing him to rule over time itself at the cost of his own LIFE COUNT. Entrusted with this unfathomable ability, Tendo must overcome his own weaknesses and awaken as the strongest Conqueror!