Whoever wants to be a good queen goes to the school of princesses! Here, the girls learn to protect the magic of their realms! The princesses are overjoyed because today they are getting their own pony! Only Dana from the Diamond Kingdom is trembling: she is afraid of horses! After all, there are neither animals nor plants at her home! But how is she supposed to explain that to the other princesses? In her distress, Dana claims to be allergic to ponies. However, the sassy Rosa sees through Dana and challenges her to a nighttime race! Fortunately, Dana's friends Kimi and Winnie notice that something is wrong. And Winnie has an idea: to teach the conceited Rosa a lesson, she plans to compete in the race disguised as Dana. Will that work out? In the end, Dana realizes that it is important to admit one's own fears and mistakes.