My son's wife

His wife, Iroha, begins to teach his father-in-law, Kojiro, who has moved to Tokyo to obtain a license as a chef... As Kojiro continues his teaching, his body touch increases, and Iroha feels a bit excited about his body. Because he has no sex with his husband, he can't hold back and masturbates in the bathroom, but Kojiro watches him. Iroha's crotch can no longer contain the ache due to the intense and obscene sex that her husband doesn't have, and her body becomes more and more sensitive due to the humiliation of her stepfather, who doesn't know how to stay...