Junko is an only daughter raised in a wealthy family. Her parents force her to give them a special education, but she doesn't show any signs of displeasure and does it perfectly. However, her true identity is that of an extremely perverted schoolgirl with a strong obsession with sex and abnormal sexual tendencies. One day, Junko's private tutor is on maternity leave, so a male private tutor is brought in to help her with her studies. Junko, who never had a proper conversation with a man at an all-girls school, is more interested in men's bodies than in her studies. What will become of the private tutor whose body is targeted by a perverted schoolgirl?