Sachiko, a wife who lives with her husband who runs a hot spring inn in the countryside.One day, her son, who lives alone in Tokyo, came home, and she spent time with her family for the first time in a while.That night, my son, who accidentally witnessed the couple's nightlife, feels frustrated.The next day, my son, who happened to be in the open-air bath where her mother was bathing, couldn't control her lust and violated her mother, but Sachiko felt it while resisting her words. .