An ancient vampire who has thrived on human blood for centuries meets a modern Japanese wraith spreading curses through television screens. These two beings, transcending the boundaries of East and West, forge a covenant of love that births a daughter inheriting their blood and terror... (Source: YouTube)

Ever since she was a young girl, Sooha was told to hide her superhuman abilities to avoid getting mistaken for a vampire. Having been accused of being one and blamed for her childhood friend's death, Sooha enrolls in Decelis Academy—a night school where supernatural beings, such as vampires and werewolves, allegedly cannot enter. At the academy, Sooha soon encounters Heli, a student who offers friendship despite discovering her secret. Heli introduces Sooha to his close friends—Jaan, Jino, Shion, Jakah, Noa, and Solon—who all have different powers as well. But their connection seems to run deeper than just that; they are curiously drawn to her, feeling as if they would do anything she wishes. In light of a recent murder that is said to be the work of a vampire, Heli and his friends' unsettling history slowly unravels. While the seven boys try to shield Sooha from the world of the supernatural, she inevitably gets entangled in the centuries-old rivalry between vampires and werewolves. As tensions intensify, Sooha realizes that she may be closer than ever to the creatures she hates the most.

In the shadowy streets of Lügenberg—a city where humans and demihumans coexist in uneasy peace—an unusual detective agency operates far beyond the reach of common law. There, vampire investigator Arne Neuntöte pursues the uncanny, blurring the lines between violence and truth. Everything begins to shift when Lynn Reinweiß, a noblewoman whose fascination with vampires outweighs her grasp of their danger, crosses paths with Arne. The two form an alliance in pursuit of bloody mysteries that emerge from Lügenberg's darkest corners as death and deception surface beneath the city's gothic veneer. Through each case they solve, Arne and Lynn discover time and again that truth is more elusive than what any surface can reveal.

As a vampire, Luna Ishikawa can be considered a unique transfer student. With her cool demeanor, she has quickly become her class' center of attention. Normally, it would be nearly impossible for Tatsuta Ootori—a completely average guy—to ever interact with her. However, this changes when the two are unexpectedly paired together for cleaning duty! After Tatsuta spontaneously forms a friendship with Luna, his impression of her slowly crumbles: she is not the mysterious and collected girl everyone thinks she is. In fact, she is unable to even suck blood properly! Resolved to help Luna overcome her ineptness, Tatsuta proposes to become her practice partner. Pumping life into their mundane school days, the duo gradually works toward their delectable goal, improving Luna's blood-sucking skills with every bite she takes.