A film made from the perspective of children who are forgotten in today's material-rich Japanese society and cannot have enough to eat every day. A brave man in the fifth grade of primary school, his parents run a canteen, and he and his sister live a safe life every day. On the other hand, the brave man's good friend Guizhijia is a family of single mothers who completely ignore their children. So the brave man's parents often bring Guizhi home for dinner. One day, the brave man met two sisters who lived in the car with his father, and he asked his parents to cook for them. A few days later, the two sisters' father disappeared. So the brave man and Guizhi took the two sisters and began an unexpected action.