Seventeen-year-old Chiyuki Matsuoka was born with heart problems, and her doctors say she won’t live to see the next snow. Toya is an 18-year-old vampire who hates blood and refuses to make the traditional partnership with a human, whose life-giving blood would keep them both alive for a thousand years.

Even though Toya has bonded with Chiyuki and is using his powers to keep her healthy, he's reluctant to make their connection complete. He can't imagine dooming someone he cares for to millennium of suffering. Can Chiyuki and their friends convince him to take a risk on love before it is too late?