Before Dr. Sachi Tanaka's friend reappeared as a bloodless corpse, she visited Kamiya—a special club where customers pay for a good time in money and blood. Although vampires are cleared of suspicion for the murder, Tanaka finds her way into a private room at Kamiya with the seductive vampire host Johan. But, as the sight of blood makes her nauseous, Tanaka refuses to have her skin pierced. Images of the alluring Johan plague Tanaka's mind, and, under the excuse of overcoming her fear of blood, she returns to the club. However, Johan's flattering words and the euphoric sensation of their teeth against her neck cloud her mind, and she keeps coming back—even if the threat of a bloodsucking killer still looms over the city. [Written by MAL Rewrite]