When ``Mio Kimijima'', an elite office lady and sales manager, gets stressed out, she releases it through exposure play. - The pleasure of exposure gradually becomes more extreme in search of further stimulation. - A cleaning worker from the company secretly filmed her. - He is blackmailed by this, and after having strong sex in the office, he is trained as an exhibitionist. - Kneeling naked in the toilet, masturbating naked to show off to customers in the library, molesting him on the train, bukkake a lot of semen at an off-line meeting... - Mio exposes her shame and delinquency and drowns in a bottomless pit of perverted pleasure. - The whole story of how such an elite office lady falls to the bottom at the end of her lustful desires!