Married woman Mako, who is cold towards her husband every day, has an affair with Haruma, who comes to sell her a newspaper. She cums by sucking his breasts, gets addicted to his young big dick, and begins to feel the joy and happiness of being a woman again. However, when her cheating scene is discovered by her brother-in-law Dai, Mako ends up having an affair with Dai as well. She moans at the big dicks of the two breast-loving men, desires both dicks, and becomes more beautiful and lewd.