Fifteen-year-old Alfred, the heir to the prestigious Saionji family, spends his days training to become the perfect gentleman. His only respite from his strict lifestyle is his cool and collected maid, Magley. But Magley has a secret--she's not only a vampire, but an aggressive, naughty vampire who can't resist sucking Al's blood in all manner of seductive ways. Nevertheless, Al cares deeply for her, and in a world where humans and vampires aren't supposed to coexist, all he wants is to keep her safe. Just what sort of fate lies in store for them...?