Urajuji Academy has a consistent education system from kindergarten to university, but it is also strict in that students cannot advance unless they achieve the required grades at each stage. One student is stuck in the process of moving up from junior high to high school. The parents are called and it is announced that the student will not be able to move up if things continue as they are, and will have to transfer to another school. The couple, who do not want to lose the brand of Urajuji Academy, are anxious and plead for something to be done. They are told that they will be contacted later, and the anxious couple sets off on a journey of rape under the pretext of extra lessons.