My father-in-law, Eiichi, who was living a comfortable life abroad, suddenly returned to Japan and stayed with his son and his wife for a while. Yuna, a beautiful bride, does not think well of Eiichi, who has always had a violent relationship with women, is pushy, and inconsiderate. “If my husband goes to work, I will be alone with my father-in-law.” From the next day, Eiichi teaches Yuna how to play golf without being asked. Eiichi's unpleasant black hand found Yuna's secret place...