Yui is a your typical sweet high school girl. Who one day has to transfer to another school thanks to her fathers work. She also gets to be boarded at a very large and nice mansion. However, she runs into a problem when she learns that her new home also has to be shared with 6 crazy and sadistic vampires. What is a sweet innocent girl supposed to do with every single vampire licking, touching, and telling her how much they want to hear her scream for their pleasure. What ever will she do to get through the school year?