Violated by father-in-law... beautiful wife

Since his family doesn't talk to him at all, his father-in-law, Ryohei, often comes to the house of his beautiful wife, Ayumu, who is the only person he talks to. Ryohei pretends to teach Ayumu her only hobby, fishing, and begins playing with Ayumu's body. Ayumu is at the mercy of the caress of an old-fashioned man, and in the end, he ends up being penetrated with a cock. Ayumu is worried alone, unable to confide in her husband, but Ryohei's evil hand is once again...