Sumire’s secret that I peeked into… I never thought that the class president whom I adored was such a perverted and masochistic girl…. On the way home from school. I follow the suspicious Sumire. Sumire takes off her clothes and shakes her hips in front of an old man. She is treated like a slave, raped, and made to come repeatedly. Seeing Sumire like that, she gets an erection in spite of her sadness. She can’t forget the scene she wants to forget. I suffer from jealousy and despair. And yet I get an erection again.