Kotaro and Hideto are told that one of them will have to be laid off due to the downsizing of the business. Kotaro, a bachelor, voluntarily resigned because he had a family and cared for the Englishman who had just bought his own house. "Someday I'll return the favor..." Eiji and Rinko swore to each other. Six months later, Kotaro, who returned home and got a job as a sightseeing bus, went to Tokyo as a driver. Kotaro, who was lustful for Rinko, who greeted her, approached Rinko, taking advantage of her absence. A person who was once indebted. Rinko has a relationship with her without strongly refusing.