Worried about his father-in-law, Saburo, who lived alone, Naruse and his wife began living together. Kokomi is truly happy living with him and looks up to Saburo as if he were her biological father. Kokomi's arguments with Kazuaki become constant, and Kokomi's sadness increases. One night, after arguing with Kazuaki, Kokomi rushes out of the bedroom and seeks warmth from Saburo, who is always there to comfort her, outside of the father-daughter relationship.