[Super sadist! Super slutty! A live-action adaptation of the original work by Yuunabe, a precocious brat who bullies adults] Koharu and I are neighbors and students of each other, and we have a relationship like brother and sister. When I was in despair after being broken up with because I was still a virgin, Koharu said to me, "I'll teach you about sex." This is where the days of super sadist lessons begin. Abstinence, forced ejaculation... In this sexy world where you get raped and trained by a girl much younger than you, your sense of ethics will be completely destroyed!