D.Gray-man (¿¿¿·¿¿¿¿¿, Di Gureiman?) is an ongoing Japanese manga series written and illustrated by Katsura Hoshino. The series tells the story of a boy named Allen Walker, a member of an organization of Exorcists who makes use of an ancient substance called Innocence to combat the Millennium Earl and his demonic army of akuma. Many characters and their designs were adapted from some of Katsura Hoshino's previous works and drafts, such as Zone, and Continue, and her assistants. The manga began serialization in 2004 in the Weekly Shonen Jump magazine, published by Shueisha under their Jump Comics imprint, and to date, 18 collected volumes have been released. It is currently slated to make the transition from weekly to monthly series in November 2009, when it begins serialization in Jump Square. There is also a spin-off novel series titled D.Gray-man Reverse, authored by Kaya Kizaki, that explores the history of various characters. von Miller, Frederic P.