Infiltrating a small to medium-sized company employing housewives in their late 40s to 50s who work part-time. Among them is an ordinary middle-aged woman wearing a typical office lady uniform—seemingly modest and giving off no sexual vibe whatsoever. With their supervisor watching from behind a partition, these women silently endure, keeping their clothes on so they can quickly compose themselves, engaging in bareback sex right at the workplace. A strict rule is in place: because ejaculation outside would cause a mess, all creampie orgasms must be done internally.