In the quiet countryside, three dramatic stories unfold around a complex relationship between a fifty-year-old mother and her son, delving into forbidden desires. Secretive and unable to confide in her husband, the mother becomes entangled in creampie incestuous acts with her son. In the Hikari Kouzuki chapter, the mother—usually calm and seemingly devoid of femininity—reveals an unexpectedly wild side, driving her son to repeatedly seek her out for nightly encounters. However, an unexpected incident propels the story into new territory. In the Misato Matsushita chapter, the mother secretly buys a vibrator and frequently uses it to satisfy her sexual needs. One day, her son catches her masturbating, and her conflicted emotions under his gaze are laid bare. In the Yuiko Toyoshima chapter, the son becomes strangely drawn to his mother's habit of washing her underwear in the bathroom. When his father is away, he assaults her while she's bathing—an act that becomes a pivotal moment in the narrative. Each story intricately weaves themes of familial bonds and deep-seated taboo desires, leaving a powerful impression on the viewer.