After losing her husband, Reiko and her son Toshio moved to a village nestled in the mountains. In this village, cut off from modern civilization, men and women openly engage in sexual acts in the bushes, and the custom of night crawling still persists. Toshio was worried that his mother, Reiko, might fall victim to these practices, but one day he catches her masturbating. Realizing that Reiko is unable to satisfy her own body, Toshio begins to see his mother as a woman…
