Yui suffered with the brothers Ayato, Laito, Kanato, Subaru, Shu, and Reiji. Everyday, one of the brothers drinks Yui's blood. But until one day, her life will be saved. She was going to the bathroom in the middle of the day, and without noticing, a young girl was standing in the middle of the entrance. She was looking down, but when she was looking up, she was a vampire. She was beautiful in every way, Yui came up to her. And without noticing, she didn't bit her. She was nice to Yui, but when the brothers met her, guess who's the one with the most bites? Read me please...