Des:Ever since his wife returned home to give birth, Daisuke has been living a sluggish life. Suddenly, her wifes older sister, Chiho, came to take care of her housework. Daisuke, who is fed up with the messy room, welcomes Chiho, but... Every time I clean her, I see her panty shots and her glossy thighs, which makes her throat growl. As she smiles at him with her lovely smile, the defenseless Chiho clings to her, and her rationality disappears...