Claymore (Japanese: クレイモア Hepburn: 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 where it was published monthly. When Jump Square was introduced in November 2007, the series was moved to it. The individual chapters were published in tankōbon volumes by Shueisha, with 27 volumes released between January 2002 and December 2014.