Momoko works as a managing director at her husband's company. Her husband is a womanizer, and their relationship now seems like that of strangers. At that time, a handsome man named Zuozi joined the company as a new graduate. Momoko secretly uses Zuozi, who has serious and innocent eyes, as a masturbation aid, but one day a miracle happens. Zuozi is going on a business trip in place of her husband, staying overnight. Momoko does not miss this opportunity and orders Zuozi to accompany her, saying "this is also a learning experience." After successfully completing the business negotiations, Momoko gets Zuozi drunk on the pretext of a victory party, and makes him indulge in sex under the pretext of training...