Mimi is an aspiring "mousetro" who is abandoned by her brothers. They insist that girls cannot be mousetros. Mimi packs her breadstick baton and sets off; she meets a magical maestro who gifts her with a golden baton. Recalling a story about a musical garden, Mimi seeks it out, but the garden is dying and no longer musical. With her golden baton in hand, Mimi conducts music back into the garden and proves that girls can be mousetros too.
