Ogre SlayerOgre Slayer.

Ogre Slayer (Japanese: 鬼切丸, Hepburn: Onikirimaru) is a Japanese manga series written and illustrated by Kei Kusunoki. It was published in Shogakukan's shōnen manga magazine Shōnen Sunday Zōkan (later Shōnen Sunday Super) from 1992 to 2001, with its chapters collected in 20 tankōbon volumes. It was adapted into a four-episode original video animation (OVA) released from 1994 to 1995.