Rion Kanou (Minako Komukai) is high school girl who receives a strange voice mail message on her cell phone on afternoon. Her best friend, Shiho Aiga (Yurie Kojima) call, panicked, and says "Rion, help me! A real vampire..." That's all she manages to leave before she is cut off. Needless to say, Shiho doesn't answer her phone, nor is she home. Looking through her friend's room, Rion discovers a card for a "host club" named Kranken Haus, a place where older women can go to spend the evening with handsome young men dressed in gothic garb. For a price, of course.

Checking out the club, Rion meets Suou (Satoshi Matsuda), an escort at the club who dresses as a vampire right down to the long fangs. At first he denies knowing Shiho, but when Rion presents him with his business card he reluctantly admits that he met her briefly but kicked her out of the club. Not believing a word of it, Rion purposefully smashes an expensive bottle of champagne and then takes a part time job at the club to work off her debt. She figures that this is the prefect way to keep an eye on Suou and discover what he did with Shiho.

Rion does make some discoveries, but not what she was expecting. Not only does Suou dress like a vampire, but it turns out that he really is one. He can walk in the daylight, eat garlic, and isn't afraid of crosses, but he's a blood sucker none the less. He wears a necklace around his neck that dampens his powers and his thirst for blood, it's the only way he can fit into human society. Suou didn't take Shiho however, but with Rion's help they start to investigate.

In the next story, half of a pop duo that never really made it big is murdered. The odd thing is that just before she dies she calls her partner and says that she's being chased by an invisible man. When the other part of the duo is targeted by the same transparent killer, Rion and Suou decide to get to the bottom of the mystery.