His fiancé, Tomoya’s father, was once a partner who had had physical relationships many times.
Kanako was hoping that Tomoya’s father, Tagawa, would forget about the past, but that was a sweet idea.
Kanako was embraced by Tagawa on the condition that she kept her past secret.
And Tagawa is not satisfied at once and asks for her Kanako again.
She tries to reject Kanako, but her pleasures reminded of her past did not allow it.