In this prequel to the original series, the origins of the dark, sensuous powers of the "Bible Black" book are revealed. Twelve years prior to its discovery by Minase, the book was first owned by a female student, Takashiro, who, along with other curious students, formed the first magic club on campus. As the club begins to use the erotic spells to carry out favors and exact vengeance, Takashiro is eventually taken out of the picture, and a new leader guides the club towards a darker course. This sets the stage for a dire choice that newcomer Kitami must make, one that will forever change the course of events.