"I'm sorry, honey... there was a part of me that was longing for my father-in-law's huge cock..." Just as they were about to start their happy life together as a married couple, Minami's beloved father suddenly falls ill and passes away. To make matters worse, a massive amount of her father's debt is discovered. With Minami at a loss, her father-in-law offers to pay off the debt in exchange for a sexual relationship. Unable to refuse, Minami's heart and body are gradually corrupted by her father-in-law's huge cock...