Since she was very young, Sora Naekino (voiced by Ryo Hirohashi) has been full of longing for the performances of the Kaleido Theater. Now that she has grown up and is finally able to pursue her dream, Sora, full of confidence, embarked on a journey to the United States. She vowed to become a member of the theater and bring joy to more children. Unfortunately, things did not go as she wished. As soon as she set foot on American soil, Sora lost her way. After a series of twists and turns, she missed the theater's selection exam. Even if she could not become a member of the theater, she had to see their performance with her own eyes. With this belief, Sora came to the backstage of the theater, but accidentally injured the superstar Leila (voiced by Sayaka Ohara) who was about to perform. In desperation, the manager had to let Sora replace Leila on stage. Unexpectedly, the newly arrived Sora actually won the love of the audience. In this way, Sora was admitted as an exception, and her performance career in the Kaleido Theater officially kicked off. Facing strong competitors, can Sora stand out?