Misaki, who has found herself at a school for maids, has no interest in domestic service at all. So how did she end up with an exclusive contract to serve an elite young lady?!
A thousand years ago, there was a feared tribe of super-powered vampires called "True Bloods" that have since disappeared—except for the youngest, Ristia. Awakened from her slumber, she has one desire: get herself a little sister to dote over!