Ryoko gave birth to Tatsumei when she was young. - Although raising children at such a young age was difficult, her husband was supportive and the family was happy. - However, by the time Tatsuaki entered university, her husband had stopped having sex with her, and it was soon discovered that he was cheating on her. - Although they did not divorce, their relationship completely deteriorated and they separated. - When Tatsuaki returns home for summer vacation, Ryoko meets him at the station to greet him and report on his divorce.