Aimi who was living a happy life after marrying a gentle husband. However, she had a secret that she could not tell her husband. It means that he deeply loves his son Yuuki. Of course I loved my husband, but I was not satisfied with plain sex with him. In that respect, Yuuki intensely sought frustrated love, filling both her mind and body. Therefore, the two of them, no matter how close their husbands were, sought each other, held their breath and continued to copulate...