I'm living a smooth and happy life with my wife, Maki. Three years ago, when my business was failing, my best friend Mukai silently reached out and saved me, which is why I have this life today. However, he lost his wife and has since fallen into disarray, unable to manage anything on his own. Since he always relied on his wife for housework, garbage and laundry have piled up in his home. Wanting to repay my debt of gratitude, I decided to send Maki to take care of Mukai for three days. But my goodwill would soon be repaid with betrayal...