痴漢電車　うごめく指のメロディ

Yuko, an office lady who was a member of the track and field team in her school days, never misses her morning jog. She has a crush on Teppei, a university student, but she is too shy to talk to him. Yuko has just moved to Tokyo and is not used to city life. One day she witnesses a molester on a crowded train and then gets molested herself. Even though she screams "stop it," the people around her are only distracted by her strong accent. Yuko finds solace at the izakaya run by Ken and Kumiko. Since Kumiko is from the same hometown, Yuko is able to relax. Teppei starts working there as a part-timer. Yuko is embarrassed and can't speak to him. That night, she masturbates for the first time while thinking of Teppei. One day, Yuko's older sister Yayoi comes to visit her. Yayoi is on honeymoon with her husband Yoji, who is also a train enthusiast. Yuko tells Yayoi about her unrequited love and is advised to pour all her energy into expressing her feelings...