One day, Chitose, a mother, is happy that her daughter and son-in-law will be living with her and that it will be comfortable for the family. However, when her son-in-law Koji quits his job, the relationship between the couple visibly deteriorates... Chitose mediates between them and looks after them in every way possible, but Koji is drawn to her caring kindness. Then, when Koji successfully changes jobs and confesses his feelings to Chitose, she is swept away by his honest feelings and cannot resist them...