NBCUniversal Entertainment Japan
Hal Film Maker, Kadokawa Shoten, and Rondo Robe collaborated to adapt the manga chapters into an anime series that premiered in Japan on WOWOW on April 4, 2001. It ran for 13 episodes until its conclusion on June 27, 2001. Geneon (now NBCUniversal Entertainment Japan) released the series episodes across four volumes in Japan in both VHS video and DVD forms. ADV Films licensed and released the anime series. Funimation has re-licensed the series.