* Based on the erotic game by http://anidb.net/cr36265 [Grand Cru Bourgeois].
Angels and demons had fought over a long time to see who reign supreme. In order to bring closure to this feud. An angel named http://anidb.net/ch55261 [Serra] and a demon named http://anidb.net/ch54828 [Firika] were sent to the human world to finish this competition. The leader of both angels and demons decided that both the angel and demon must contend for the love of a human named http://anidb.net/ch55743 [Yamato]. Thus Serra and Firika compete to for Yamatos love and the supremacy of their entire race.