Sally, alongside Maggie, Michelle, and Beibei, embark on a quest to assist the Fairy Queen in locating her missing friend, Melody. Melody is a talented music fairy hailing from the Music Castle. During their journey, they cross paths with nine musical magicians and confront the ominous dark musical witch, Voiceless. Sally and her companions have a suspicion that Melody may be entangled with the malevolent force lurking in the background. Nevertheless, the question remains: what is the actuality of the situation?