尖端出版
is a one-shot Japanese manga written and illustrated by Atsushi Suzumi. The manga was serialized in Kodansha's shōnen magazine, "Monthly Shōnen Sirius", ending the serialization at 5 chapters. The individual chapters were collected by Kodansha into one "tankōbon" volume which was released on December 22, 2005. The manga is licensed in North America by Del Rey Manga, which published the manga on May 20, 2008. It is also licensed in Taiwan by Sharp Point Press.