Kamisama Onegai!
神様お願いっ!
Akumu experiences troubling dreams each night and enrolls at St. Noel Gakuen, a school led by a priest. There, he meets Yagiri, who is also a source of his dreams, causing awkwardness between them. It is revealed that Akumu is a succubus draining Yagiri's life force, who is identified as a vampire. The priest, who is actually a god, has the ability to help them, provided they remain in his favor.