Kotaro and Hideto are told that they will have to lay off one of them due to business downsizing. Concerned about Hideto, who has a family and has just bought his own home, Kotaro, who is single, resigns voluntarily. "I'll repay him Itsuka..." Hideto and Rinko vowed to Kokoro. Six months later, Kotaro returns to his hometown and gets a job driving a tourist bus, and travels to Tokyo to work there. Aroused by Rinko who greets him, Kotaro takes advantage of Hideto's absence to make advances on her. Someone who once did him a favor. Rinko is unable to refuse and they end up having a relationship.