Ogre Slayer (Japanese: 鬼切丸, Hepburn: Onikirimaru) is a Japanese manga series written and illustrated by Kei Kusunoki. The manga has been adapted into a four-episode original video animation (OVA). Both the manga and anime were distributed in North America by Viz Media, though only two volumes of the manga were released. On July 11, 2013, plans for a follow-up manga were announced. Unlike its predecessor, Onikirimaruden (鬼切丸伝), takes place in the Sengoku era, and features an entirely different lead character.