Struggling with the fatigue of caring for her stepfather, 'Natsume' finds herself staring at his erect penis one day. The robust erection of this elderly man who survived the Showa era unconsciously appeals to something within 'Natsume's' womb... From that day on, her stepfather's penis becomes unforgettable. Though she has been masking her sexual desires through masturbation daily, she can no longer hold back and begins to seek his body on her own.
