Izumi, a mother who divorces and lives with her son in the house left by her parents. At one point, Shimizu, a remodeling company, accidentally helps her husband, who comes to Kim's innocence even after divorce. Izumi, who is a stranger to the world, became friends with Shimizu. Furthermore, it forgives the body while being swept away. After that, Izumi who accepts Shimizu completely, such as seeing his son's study, but only the words of her husband who left behind saying "Be careful with Shimizu" are caught in my chest.