Thirty-five-year-old novelist Makio Koudai never had a good relationship with her older sister Minori, who always berated her for being different. Due to this, Makio is not stricken with grief upon hearing the news that Minori and her husband die in a car crash. But when Makio is asked to identify their bodies, she runs into her 15-year-old niece, Asa Takumi, whom she has not seen in years. Struggling to process her...