On the train for the first time in a while, Miki felt something strange when a hand touched her buttocks. No way... right? She was sure it was an accident, but then the hand penetrated inside her skirt. Fear ran through her the moment she realized she was being targeted. Her body stiffened and she couldn't even make a sound. Unable to resist, she allowed the men to penetrate her most sensitive part, and she came on the spot. But a few days later, Miki got back on the train where they were waiting. The humiliating experience had imprinted an unforgettable pleasure on Miki's body.