This role-play is performed by adults. Himari is a 24-year-old F-cup beautiful breasted wife who is worried about not having sex with her husband. Seeing her frustration, her stepfather, who lives with her, secretly buys a rejuvenating drug. Then, due to the effects of the medicine, he transforms into a young man with an incredible body! When Himari is forced to ask, ``Isn't it okay for me?'', she is unable to resist her father-in-law's rejuvenated, strong body, and falls into a forbidden physical relationship with her husband in his absence. In the bathroom, she is forced to take a cock in her mouth, and on the futon in a Japanese-style room, she has intense beastly sex that brings her to climax over and over again! The best NTR who whispers, ``I'll make you feel a lot in Satoshi's place,'' and ``Thank you,'' and completely falls for a woman!