Rinriko is active as a department manager at an underwear manufacturer, but she is strict about her work and sometimes slapped in the back as an "arrogant female boss". At that time, a complaint was received from a customer's mail order company. - The other party, who felt arrogance in Rinko's businesslike attitude of apologizing on behalf of her subordinates, was even more angry and forced to insert a vibrator saying, "There is no sincerity!" After that, the complaint continues, and Rinko is humiliated with a vibrator every time she is called. However, the shame eventually turns into a secret pleasure ...