One morning, Junko is seduced by her husband and enjoys intense sex for the first time in a while. Her body aching with desire, she turns to her younger son, Kenichi, seeking the warmth of incest once more. But only the son reaches climax, leaving her unsatisfied. Craving fulfillment, Junko turns to her eldest son, Junichiro—more experienced than his brother—and plunges into wild, hardcore incestuous sex, finally reaching ultimate pleasure.