Saeka is a quiet, shy married woman, and her everyday life is turned upside down by meeting Samejima, a rough manual labourer. His feral, forceful advances wake up a female instinct that had been asleep. While her husband is away, wrapped in dripping sweat and a thick smell, she cums over and over under relentless follow-up thrusting. Even the guilt gets turned into seasoning for the pleasure, and after the shock of being creampied, her body can't function without Samejima any more. But Saeka hasn't yet noticed that there's a cold pair of eyes watching those forbidden meetings...