Shigurui : Death Frenzy

Shigurui (Japanese: シグルイ, “Death Frenzy”) is a Japanese manga series by Takayuki Yamaguchi, based on the first chapter of the novel Suruga-jō Gozen Jiai by Norio Nanjō. An anime television adaptation, based on the first 32 chapters (or the initial six and a half volumes), aired on WOWOW from July 19 to October 12, 2007. The series was directed by Hiroshi Hamasaki, written by Seishi Minakami, and produced by Madhouse Studios. The anime was licensed in North America by Funimation under the fully translated title Shigurui: Death Frenzy. The licensing was announced in May 2008 and the full series was released on March 31, 2009, on Blu-ray and DVD. The manga and anime are both known for their graphic violence and sexual content. Wikipedia