"This plan is meaningless if it's not perfect..." Akiyama, who works in the general affairs section, is a serious office worker with a wife and children who is about to become the section manager. Until he met Erina, who came to greet him due to a sudden change in the person in charge of the business partner... Is there such a coincidence...!? If you look closely, the new person in charge is a woman who passed by the other day at an izakaya. Erina, who remembered, invites Akiyama out and approaches her. Who would have imagined that I, who is a serious person, would have an affair with a female client!? A beautiful face and an irresistible desire to hide her lewd body... Erina's reset plan, which no one could have predicted, begins now.