Six years ago, Kasumi's mother remarried and Yoshio became her father-in-law. Kasumi's relationship with Yoshio was awkward for Kasumi, who left home shortly after her mother remarried. On the other hand, Yoshio was aware of Kasumi as a woman from the beginning of his remarriage, and even now that Kasumi has become a wife of a person, he still has an evil feeling. And the incident happens. Yoshio, who was lustful for Kasumi on his way home, hugged him from behind and whispered in his ear, "I've become an even better woman."
