While a photographer is investigating a mysterious castle, he discovers a captivating young vampire girl who's been trapped there for years. Unknowingly, he frees her - and ensnares them both in a struggle for love, power, and authority among the undead and other dark forces that combat them. The girl's peaking vampire powers, alluring beauty and uncontrollable personality have no been unleashed upon the world.

Like a child's rhyme, from beginning to end and back again... Hazuki and the Mido clan have come full circle, but the stakes are far higher than ever they were: no longer the specter of death, but the loss of a soul. Kouhei, having seen Hazuki's true form, cannot reconcile the little vampire he has grown to love with the monster before his eyes. And to save the others, Hazuki must embrace her fate, sacrificing all that she has come to love in order to save it.

While Kouhei ranks among the best in paranormal photography, he's never actually seen a ghost. So when he fails to capture a hauntingly beautiful young girl on camera, curiosity drives him into the arms of a vampire and a world he cannot comprehend. Hazuki, having waited years for someone to finally set her free, proves unwilling to part with her unwitting hero and follows him home, promptly adopting his life as her own.