?) is a dark fantasy manga series written and illustrated by Norihiro Yagi. The series initially premiered in the now defunct Monthly Shōnen Jump
in the May 2001 issue. When the magazine was canceled in June 2007, the series was temporarily moved to Weekly Shonen Jump
. When Jump Square
was introduced in November 2007, the series was moved to it and is still on-going. The individual chapters are published in tankōbon
volumes by Shueisha, with 14 volumes released as of May 2008.
Madhouse Studios adapted the first eleven volumes of the series into a a twenty-six episode anime series. Directed by Hiroyuki Tanaka the series premiered in Japan on NTV on April 3, 2007 and ran until September 25, 2007. A CD soundtrack for the anime series, and a CD of character songs using the anime voice actresses were released on July 25, 2007 and September 27, 2007, respectively.
manga is licensed for an English language release in North America by Viz Media, which began serializing the title in its Shonen Jump
manga anthology in the April 11, 2006 issue. It released the first volume of the series on April 4, 2006 and has released 13 volumes as of October 2008. The anime adaptation is licensed for release in North America by Funimation Entertainment, which has released the first DVD for the series in fall 2008. Madman Entertainment has licensed the anime for release in Australia and New Zealand.