Rin Higashi appears in the seventh installment of this popular series! Rin's crotch tingles from the intense moans she hears night after night, and from the passionate, animalistic coitus of flesh colliding with flesh. Her father-in-law is a good old man, but he has an intense sexual appetite, and he embraces her mother-in-law every night. He is a life-long voracious eater. The frustrated wife's mind gradually turns to her father-in-law. She wants to be hugged like that. Unable to suppress her desire, she goes to be embraced by her father-in-law on a dangerous day...