Redaria Anaro goes to the Sakumaki's, a family of six boys to visit for the night, and ends up staying at them for a while. While staying with them she enrolls in night class at her school to stay close to them. Soon she learns that all six of them are vampires. As she comes to learn them better, she meets four other boys who are also vampires, the Mukami's. She learns of her mysterious past with the eldest Mukami boy, Ruki. She meets new people and finds her true calling, as a vampire herself. Redaria descovers a girl who looks exactly like her. Along with facts she soon come to realise are complety misunderstood.