This song was uploaded to Niconico on July 11, 2011. It is one of Nem's most popular songs. It is featured on the album From Neverland ~Best of Nem~. The story of the song shows Len as a stray black cat who is interested in a home-loving and refined white cat represented by GUMI. This song is featured in the EXIT TUNES compilation album Vocalocluster and in the album V love 25 ~Aperios~. This song has entered the Hall of Legend.