Yuji has no sex with his wife and can't seem to stop feeling horny. Unable to resist, I secretly went to the soap, and the girl who showed up turned out to be my wife's friend, Ai. It is said that she started working in the sex industry after her husband's income decreased and she had trouble repaying the loan. Yuji tries to change because of her embarrassment, but she smiles and entertains him to his heart's content, giving her the greatest pleasure. More than guilt towards her wife