After getting a divorce a few years ago, my mother, who raised me on her own, was hospitalized.Her only son, Satoshi, stared blankly at her mother's thin hands in her hospital room.Satoshi was worried about his future life, and above all, whether he would be able to pay for his mother's medical expenses.Satoshi's aunt Natsuko comes to visit him.Satoshi was encouraged by Natsuko's words, "It's okay."And in such a situation, the distance between Satoshi and Natsuko is getting closer.