HBAD-616 The lewd sex life of my sister-in-law who married into a family of sexual perverts, Kirina Hirai

To protect his inheritance from his younger brothers, the eldest son started having his wife Kanako take care of his father. Kanako, deceived by her lecherous father-in-law's fake illness, dutifully nurses him, even going as far as giving handjobs. She can't help but drool over her respectable father-in-law's cock. Thus begins their secret physical relationship. After being caught and blackmailed by the third brother, she commits adultery with her father-in-law. She reaches orgasm multiple times with her father-in-law's large dick. During a 3P with her second brother and father-in-law, her true lecherous nature is exposed.