Kotaro and Hideto are told that one of them will have to be fired due to business downsizing. Kotaro, who is single, voluntarily retires because he has a family and is worried about an Englishman who has just bought his own home. "I'll return the favor someday..." Eiji and Rinko vowed to themselves. Six months later, Kotaro returned to his hometown and got a job working on a sightseeing bus and went to Tokyo as a passenger. Kotaro is lustful for Rinko, who greets him, and takes advantage of Hideto's absence to approach Rinko. Someone who once received a favor. Rinko cannot strongly refuse and ends up having a relationship with him.