Wolf Guy: Ōkami no Monshou is a seinen manga by Yoshiaki Tabata and Yuuki Yugo. Released in 2007, the manga is a modern reimagining of Wolf Guy (ウルフガイ, Urufu Gai), a japanese manga series of two volumes published in 1970 by Bunkasha, originally written by Kazumasa Hirai and illustrated by Hisashi Sakaguchi. This new adaptation, also known as Wolf Guy: Ōkami no Monshō, takes a more violent and mature setting and has been released as twelve volumes by Akita Shoten.