Honoka-sensei returns to her alma mater as a new teacher. To repay her debt, she strives to improve her students' academic performance. The top student is Naito, who is not only beautiful but also athletic and comes from a wealthy family. No one in the school, including teachers, dares to defy Naito, the school's power broker. Amidst this, Honoka-sensei supports Nomura, the second-ranked student, with one-on-one guidance. Their efforts pay off as Nomura secures the top spot for the first time. As the two rejoice, Naito seethes with humiliation and rage behind their backs. Naito harbors a grudge against Honoka-sensei for helping Nomura and plots a brutal rape scheme, which he executes… This incident marks the beginning of an extortion-filled, hellish school sex life…
