Yokoyama Yui, who is a vampire broke one of the ten rules from her kingdom, she fell in love with a human. If she does this again she's bound to be dead, but instead of listening she runs away from the kingdom into the human world and finds Shimazaki Haruka. The king of the kingdom ( Tadashi) sends Watanabe Miyuki after he realizes Yui's disappearence, but Miyuki as well has got caught up into a human when she came searching for Yui to take back to the kingdom to be killed. Tadashi begans searching for both of them to kill them. (Mayuki, SayaMilky, YuiParu, Wmatsui)
