Nonose Ai is a highly sensitive 21-year-old newcomer to a real-estate company who recently moved from rural Tohoku to Tokyo. Her mischievous boss promises better sales results if she accepts a humiliating remote-vibrator challenge, and her overly earnest nature makes her agree immediately. Tormented in central Tokyo, she desperately muffles her moans, squirts, and finally collapses into a crouch from the stimulation. When a customer named Murata arrives looking for a home, she asks her boss which property to show him and is horrified to learn it is a cardboard house. The boss exploits her sensitivity further, leading to toilet oral and humiliating outdoor sex during the viewing.