[Machine Translation] It will soon be Christmas. While the whole town is in a joyous mood, the boys at the boarding school are rehearsing for their Christmas play, "The Flying Classroom," which is full of ups and downs. One day, Martin receives a letter from his mother. One day, Martin receives a letter from his mother, stating that she has been unable to pay for Martin's trip home for Christmas. Even if you are down on your luck, cheer up. A story of boys' growth with a warm message.