Gorgeous vampires are thirsty for blood. Yumi and Seiji are a happy engaged couple and the envy of everyone, but Yumi suddenly disappears one day. A year later, a woman named Nami, looking exactly like Yumi, comes along in front of Seiji who’s frantically looked for her. But adding to the mystery even more is the presence of a strange woman named Luna, who’s always by Nami’s side.