Raven Hades isn't just failing most of classes, she's also failing what she was born as. A Succubus.

Alice was a good girl who grew up saving her twin sister from her bad decisions. But one day when saving her sister from one of the worst situations she's ever been in, Alice ends up dead. In her final moments a mysterious beautiful boy offers her job which she finds pretty ironic since she's dying only to find out the job wasn't exactly what she thought...