The main character of the film is the spokesperson of the Children's Gallery, May. The film follows her on a fantastical journey with her parents to the National Palace Museum. On the train, the little girl encounters collections from the NPM, and is invited to join them at a party that unfolds into an unexpected journey. The creative fantasy of the film allows our younger audience to familiarize themselves with the cultural relics of the NPM. Also, the introduction in the film allows parents and teachers to gain a better understanding of how to use the children-friendly facilities, services, and educational resources.