Accidentally peeked into Sumire's secret... The class president I admired turned out to be such a perverted masochistic girl... On the way home from school. Following the suspicious Sumire. Sumire, in front of an old man, takes off her clothes and shakes her hips. Treated like a slave, violated and made to climax over and over. Seeing such a Sumire, sad yet getting aroused. The scene I want to forget can't be forgotten. Suffering from jealousy and despair. Yet, I get aroused again...