A student named Minase discovered a book about magic in an isolated room at school. The book contained spells with sexual effects that were beneficial for him and some friends. As he became more interested in black magic, he didn't realize the harm it could cause. Eventually, the source of the book was revealed, along with the fact that it had been used on Walpurgis Night, when evil power is strongest. After realizing his mistake, Minase struggled to break free from the darkness he had created.
The academy nurse is the main antagonist of the series and has shown interest in Minase. She knows about his experiments with black magic. In the past, she was used as a sacrificial virgin in a ritual...
The classmate of Minase is fascinated with the supernatural world and has formed a new group based on an older one that existed twelve years ago. This person is knowledgeable in black magic, and their...
The art academy professor is responsible for overseeing the art club, a group that includes both Minase and Imari as members. She has gained popularity among the student body due to her attractive app...
Minase's best friend since childhood and unofficial partner. She wakes him up each morning and is well-versed in his life. She consistently attempts to assist him in any manner possible....
The main character, an academy student who discovers the book (known as "Bible Black") in a school basement and becomes a pawn of powerful forces....