Shion, a female teacher, witnesses Hijikata's father's strong body during a home visit, and gets excited and starts to indulge in lust with him. The student who saw her lewd appearance calls Shion and threatens her. Shion is ordered to expose her obscene appearance, and her excitement gradually gets the better of her and she devours his cock. Shion's fiancé, who is in a period of boredom, is also stunned by the sight of Shion going wild with her forbidden relationship. Shion makes love and cums after a long time.