The dutiful highschool student Minato has financial problems. While his mother is in a hospital and his brother takes care of the siblings, Minato has decided to earn money for the family. A newspaper ad promises a lucrative job as a housekeeper. However the job interview with Hina, a seemingly small boy, appears to be dubious already. As Minato meets the owner, things become even more bizarre. Henri Tepes is an ancient vampire, who suddenly falls for him!

After losing his mother, Rei is left all alone and taken in by the Glamis, his father's family. They are a prestigious British aristocratic family, and Rei is sent to a boarding school. However, Rei's stepbrother, Edward, who is the head of the house and the prefect, reigns over the place! Ed doted on Rei when he was a child, but for some reason, he became cold towards Rei as soon as she enrolled. He tells Rei, "When I graduate, you'll have to go back to Japan"!? (Source: Tokuma Shoten, translated)