Kudou, a detective who's in search of the perpetrator who killed his mother, gets involved with the vampire girl "Dora-chan." Dora holds information that can help him catch the culprit, but what can a mere human like Kudou do for such a creature? Dora-chan's cool eyes, grim look, and erotic smile slowly seduces Kudou into her world and intertwines their fates together.

Note: Manga contains nudity and sexual situations.