Momoka Kato and her husband visit her in-laws' traditional inn for a wedding greeting. Due to her father-in-law's kindness, they'll be staying for three days. After the initial pleasantries, her husband heads out to greet the neighbors, leaving Momoka to enjoy the onsen. As she's luxuriating in the private bath, her father-in-law suddenly enters. Startled, Momoka exclaims, "Oh, I'm in here right now..." To which her father-in-law replies, "I was thinking of letting you enjoy it even while you're in the back..." and approaches her...