Ciel was the youngest son of the notorious shadow clan House Nocturne, spending his life treated as a defective, talentless sacrifice by his cruel family. When his clan throws him into the Abyssal Tomb as living bait, Ciel unexpectedly enters the subterranean sanctum of the Five Primordial Demon Kings, ancient sovereigns sealed away by the celestial gods. Recognizing his bottomless rage and indomitable will, the five demon lords bestow their collective authorities upon him, turning back the hands of time to return Ciel to his childhood inside the Nocturne manor. Armed with five distinct demonic authorities, including shadow manipulation, soul flaying, and absolute kinetic acceleration, Ciel conceals his terrifying power behind a frail, obedient demeanor. Methodically turning the tables on his abusive brothers and corrupt instructors, he turns the Nocturne assassin training grounds into his personal hunting zone. Preparing for the coming continental wars and the unsealing of his demonic benefactors, the youngest son rises to become the supreme lord of the dark....more