別冊少年マガジン
"Joshiraku" began as a manga series written by Kōji Kumeta and illustrated by Yasu. It was serialized in Kodansha's "Bessatsu Shōnen Magazine" between the October 2009 and October 2013 issues – from September 9, 2009, to September 9, 2013. The chapters were also collected and released into six "tankōbon" volumes under the Wild KC imprint, from May 17, 2010, to November 8, 2013. A limited edition of the fifth volume was bundled with an anime episode on DVD disc.