Help me find a BL manga!

Please help me find a BL manga. I remember uke was a human offender who is transferred to a high school where only vampires study and try to learn to live with the transferred humans. I also remember that humans have a special dormitory and that they can never open the door or the window at night. And that vampires stay at the door and the windows wanting to enter. The seme is a vampire and kind of the strongest of all at school. I'm looking for the title and can't find it. Please help me!