This animated film is adapted from the fairy tale of the same name by Zheng Yuanjie, with Che Hui serving as both screenwriter and director. 　　 A small, completely hairless dog-shaped piggy bank is placed on a table and immediately mocked by many furry, beautiful toys who are taking photos. When it asks a camera-holding fox to take a picture of it too, the fox simply tells it to go away. While feeling sad and lonely in a corner, a little hedgehog becomes its friend. After its belly is stuffed full of coins, those who previously mocked it immediately change their attitude, trying every way to please it and unanimously making it their king. However, when its belly becomes empty again, it instantly becomes the target of their ridicule once more. The only one who doesn’t look down on it for having no money is the little hedgehog. Through these ups and downs, the hairless little dog learns who its true friends are.