A quiet-looking high school girl with dark hair rides the same train every morning. One day, on a crowded train, my hand accidentally touches hers. Thinking it might be a molester, I'm confused, but perhaps because I'm timid, I don't make a sound. Even when I boldly run my hand over her buttocks, she doesn't seem to mind, and she's unaware that she's become a sexual target, unknowingly arousing the man's lust. I follow her and realize it, but she doesn't run away...