Mayumi, a wife who had a fight with her husband and ran away from home. Her husband's father, Ginji, is the only one Mayumi can rely on after she got married and left her hometown. Ginji happily accepted Mayumi, who was her son's daughter-in-law and loved like her daughter-in-law. However, her feelings for Mayumi were different. She loved Ginji as a man... And when they are alone, Mayumi presses her lustful and aching dick against Ginji and overlaps her lips. Ginji, who was rational at first, also sees Mayumi's bewitching appearance, and her crotch naturally swells.
