Nozomi Arimura, an elite office lady who has been No. 1 in sales for three consecutive months, releases stress by engaging in exhibitionist play. Eventually, the pleasure of exhibitionism leads to more stimulation, and she becomes more and more extreme, but a man working as a cleaning worker at the company secretly films her. Later, while she is seducing a molester on the train and indulging in pleasure, the cleaning worker takes her away...