Reiko married young and gave birth to Tatsuaki. Her husband was cooperative, and they had a happy home. However, as Tatsuaki grew older, the couple gradually became sexless, and her husband's infidelity came to light, causing their relationship to grow cold. After Tatsuaki went off to college and left the nest, divorce became a realistic option, leaving only the task of informing him and filing the divorce papers. During the summer break, when Tatsuaki was due to return home, Reiko decided to meet him at the station to report the divorce.
