A frustrated housewife named Yuri, desperate for sex with her husband, finds herself masturbating while he's away at work. Unbeknownst to her, her father-in-law catches sight of her self-pleasuring act and decides to take matters into his own hands upon returning home early that day. Thus begins their taboo incestuous affair! Despite initially feeling uncomfortable, Yuri succumbs to her father-in-law's experienced touch, moaning and squirming as she's taken hard and fast. Her body quivers with pleasure, leaving her breathless and soaked in ecstasy. In the end, she begs for more... the once reluctant wife is now completely consumed by lust and submission.

夫とセックスレスで欲求不満の人妻「ゆうり」。性欲を持て余し自慰をしていると早く帰ってきた義父に見られてしまう。その日から始まる禁断の近親相姦FUCK！嫌なはずが義父の老練テクでイカされ体液ダダ漏らし何度もイキ果てるド助平妻。最後は自ら義父の肉棒を求め…人妻は快楽にただ堕ちていく…。