Rika and Naoya have been married for a year, but Naoya is always busy with work and neglects her husband and wife. Rika's libido is so high that Naoya doesn't satisfy her, causing her mind to gradually collapse. Once she accidentally saw her father-in-law taking a bath, her strong desire to have sex made her think about having sex with her father-in-law. And then, in order to be able to do that, she went to the bath to help her father by using her own body. Let him touch her extremely enchanting body. When her husband was drunk, she immediately seduced her father-in-law and the two immediately made love right next to him, sowing his seed inside her...