Murder Princess (stylized in all caps) is a Japanese manga series written and illustrated by Sekihiko Inui. It was serialized in MediaWorks's Dengeki Teioh from April 2004 to November 2006, with its chapters collected in two tankōbon volumes. It was published in North America by Broccoli Books. A six-episode original video animation adaptation, produced by Marvelous Entertainment and animated by Bee Train, was released in 2007. It was licensed in North America by ADV Films, but was transferred to Funimation in 2008. Source: Wikipedia (en)