Wolf's Rain is an anime series created by writer and story editor Keiko Nobumoto and produced by Bones Studio. The series was directed by Tensai Okamura and featured character designs by Toshihiro Kawamoto with a soundtrack produced and arranged by Yoko Kanno. It focuses on the journey of four lone wolves who cross paths while following the scent of the Lunar Flowers. They form a pack and decide to seek out the Flower Maiden in order to open the way to Paradise. Along the way, they must avoid a fanatical wolf hunter and the nobles who wish to use the Flower Maiden to create their own Paradise. The wolves have an advantage in the form of a curious ability to take on a human guise, but this power brings its own complications when it gives rise to entanglements in human society.
Wolf's Rain spans twenty-six television episodes and four original video animation (OVA) episodes, with each episode running approximately twenty-four minutes. The series was originally broadcast in Japan on Fuji TV and the anime CS television network, Animax. The complete thirty episode series is licensed for Region 1 release by Bandai Entertainment, in Region 2 (Europe) by Beez Entertainment and in Region 4 by Madman Entertainment. The series was adapted into a short two-volume manga series written by Keiko Nobumoto and illustrated by Toshitsugu Iida. The manga, which was released while the series was airing, is a retelling of the story rather than a straight adaptation. It was originally serialized in Magazine Z and has been released in North America by Viz Media.
The anime series was well received in Japan, being the third ranked anime series in its time slot while airing on Fuji TV. The Bandai Entertainment English language release sold well in North America. It helped Bandai gain the 2004 Anime Company of the Year award from industry news company ICv2 in the ICv2 Retailers Guide to Anime/Manga. The manga adaptation was selected as one of their top ten anime products of 2005 and sold well in North America. Reviewers of the series gave it high marks for characterization, visual presentation, and its soundtrack, while disparaging the existence of four recapitulation episodes in the middle of the series. The manga adaptation also sold well in North America and received good reviews, though reviewers felt its short length resulted in a rushed plot and neglected supporting characters.