Mari-chan is a third-year elementary school girl. She has been practicing ballet all her life, dreaming of the day she can dance on stage with her mother, who is a famous ballerina. Mari-chan was accepted at a ballet competition and was chosen to dance the role of the Beni Rose Princess in ``Rose Monogatari.'' However, at the Sugi Ballet School where she is attending lessons, Yuurei, the Princess of the Red Rose, who has escaped from the picture, scares Maiban Mari!