When Shion, a female teacher, witnesses her father Hijikata's strong body during a home visit, she becomes excited and indulges in carnal desires with him. A student who witnessed the lewd scene calls Shion and threatens him. Shion is ordered to expose her obscene state, but her excitement gradually gets the better of her and she devours his cock. Shion's fiance, who is in a slump in their relationship, becomes erect as he watches her going wild in their forbidden relationship. Shion makes love for the first time in a long time and orgasms over and over again.