Ookami Heart

A song titled Ookami Heart was used as the ending theme for Ookami Shoujo to Kuro Ouji and was released in two distinct music videos. The first version, labeled F.O.ver., promoted the band's first single, released on December 3, 2014. The second version, a standard release of the song, was used to promote the band's second single, which came out on May 20, 2015. Both videos feature entirely original and unique animation created by Utomaru, a freelance illustrator and graphic designer based in Tokyo.