ATID-663 Rio Kuriyama, a blue-collar worker, is forced by a man she hates to endure orgasms so much that her abs twitch, and she ends up wetting herself until her work clothes are soaked.

Rio, who works at a construction site, is a tough-working woman who behaves bravely in a male-dominated society. However, Rio is not one to be outdone by the man, "Women shouldn't tell men what to do," says her old-fashioned boss, Ichihara, and they are always clashing over something or other. Today, as always, the two of them clashed at the scene, The desire that Ichihara had been suppressing for so long is ignited...