Skeleton Double is a dark fantasy action manga that dives into curses, identity, and survival through a gritty supernatural lens, following a young man whose life is shattered after a mysterious incident binds him to a skeletal curse that grants terrifying power at the cost of his humanity, forcing him into violent confrontations with occult forces, secret organizations, and other cursed beings as he struggles to control his transformation and uncover the truth behind the phenomenon, delivering intense battles, grotesque imagery, and psychological tension while exploring themes of duality, loss, and what it means to remain human when power demands sacrifice, appealing strongly to fans of edgy modern shonen with horror undertones and relentless pacing, also known as Skeleton Double manga, Skeleton Double Shonen Jump, スケルトンダブル, Sukeruton Daburu, cursed skeleton manga, dark supernatural action manga, and body transformation manga.