An anime adaptation of the series was produced by Nippon Animation and was aired on Fuji Television for 62 episodes from October 16, 1999 to March 31, 2001. The TV series is based only on the first 11 volumes of the manga, as frequently delays in the publication of the manga and unwillingness to produce low quality "filler" episodes resulted in a lack of content. Three DVD OVA series were produced by Nippon Animation, adapting subsequent chapters of the manga, up to the 185th chapter.