Claymore(クレイモアKureimoa) 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 Shōnen 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 18 volumes released as of July 2, 2010.