Itsuki Ayahara, the voluptuous mother, is captured and trained by the sadistic master of Hentai Tei, bound and humiliated outdoors as he forcefully penetrates her again and again, filling her with creampie after creampie. Naked and tightly restrained, she is paraded around like a slave, conditioned for submission. In accordance with an ancient village tradition, this mature woman must deflower her own son, initiating him into manhood. The shy, cherry boy, overwhelmed yet unable to resist the sight of his tied-up mother's alluring body, gives in to his desires and has sex with her. This shocking scene captures the collision of archaic ritual and raw, modern lust.