D.Gray-man (Japanese: ディー・グレイマン Hepburn: Dī Gureiman) is a Japanese manga series written and illustrated by Katsura Hoshino. Set in the 19th century, it tells the story of a young Allen Walker, who joins an organization of exorcists named the Black Order. They use an ancient substance, Innocence, to combat a man known as the Millennium Earl and his demonic army of Akuma who intend to destroy humanity. Many characters are adapted from Hoshino’s previous works and drafts, such as Zone. The series is noted for its dark narrative; Hoshino once rewrote a scene she thought too violent for her young readers.Towards the end of the 19th century, Allen Walker officially joins the organization of Exorcists that destroy the beings known as Akuma—mechanic weapons made by the Millennium Earl with the suffering souls of the dead. Allen has both a cursed eye and an anti-Akuma weapon as an arm, bearing the power of “Innocence,” a gift given to him as an apostle of God. Allen, along with his fellow Exorcists must put a stop to the Millennium Earl’s ultimate plot that could lead to the destruction of the world and all who live on it.