Ange Yuki is in love with the voice of Guiltia Brion and the band ECLIPSE. One day, he finds a pair performing under the same name. Another band called LOST EDEN appears before him and he realizes that something is wrong with his body...

Ange learns about the secrets of the vampire world from Eve and Elizabeth. Elizabeth asks Ange about her parents, as he is a dhampir, but Ange doesn't know who her parents are.