I was raped too much... Schoolgirl's Humiliation: Class president who was sacrificed

Nishinomiya is suddenly confessed to by Yoshioka, a genius of first grade, and is full of thought about his own entrance exam and refuses his request! Seeing Yoshioka, who is unable to study, is in control, the anger of teacher Furukawa is directed at Nishinomiya! Nishinomiya is frightened by Furukawa's fear of power, and is unable to resist and is forced to have a relationship with Yoshioka! The demands escalate too much and with Professor Murata...! Something changes in Nishinomiya, who is in the absolute position of being a teacher, is being forced and threatened, and is at the bottom of despair!