In the secluded space of a crowded train, uniformed Kitazawa Reika is assailed with immoral pranks. A finger sneaks under her skirt, avoiding the eyes of those around her. She suppresses her voice and trembles, but her body heats up from the relentless caresses. The vibrations of the train abnormally heighten the sensitivity of her private parts, and she reaches an immoral climax right next to the passengers. Her skirt is lifted up, and a cock is inserted into her while she is still in her uniform, and she experiences despair and ecstasy. This is a realistic amateur documentary in which an everyday scene is instantly transformed into a lewd love room.