A few years after his parents' divorce, Sato's mother raised him single-handedly. Now she is hospitalized. As an only son, Sato stares blankly at his mother's thin hand in the hospital room. He is anxious about their future life and, above all, whether he can afford her medical bills. Just then, his aunt Natsuko comes to visit. Encouraged by Natsuko's words, 'It'll be okay,' Sato finds some comfort. However, under these circumstances, the distance between Sato and Natsuko begins to close...
