The story began a month ago when my son-in-law returned home. Ririka is a full-time housewife after quitting her job. Her husband is Kampaku, the owner of the house, and she yells at Ririka and hurt her due to minor mistakes in housework. Her son-in-law, who cares every time Ririka is scolded, was thrilled by her kindness. She was swayed by the charm of a charming man who was close to the age of her husband. And on a stormy night, Ririka and her son-in-law finally cross the line ...