Saki is worried about the relationship between her husband, Ippei, who was disowned by her father, and her father-in-law, who is old and short, and proposes to visit her father-in-law. However, what was waiting there was the appearance of a skinny father-in-law being cared for by a rough helper. Seeing this scene, Ippei kicks out the helper and asks Saki to take care of her. But he had no idea that this would lead to tragedy...