New Vampire Princess Miyu

Stranded in the space between human and demon, Miyu was born a vampire and charged with the responsibility of returning evil demons called Shinma to the dark. Being eternally 15, she yearns to return to the dark herself but not until she has banished the Shinma from Earth. And since her awakening, she remains cut off by the facts of who and what she is. (Source: Anime News Network)

A half-human, half-vampire girl named Miyu is trapped in a body that will remain a teenager forever. As a vampire, it is her duty to hunt down demonic beings known as Shinma who have wandered into the human world and send them back to the Darkness. The new story begins with Miyu transferring to a certain middle school.