Medialuna, the little princess, has been bewitched by the powerful witch Gualichu and cannot sleep at night. While everyone else in her kingdom sleeps, Medialuna travels into a world of witches, princesses, monsters and fantastic creatures from legends and myths. She shares with them great deeds and reveals tangled mysteries until dawn. In this episode, Gualichu, leading a group of witches, marches to the castle, ready to complete her spell and take over the kingdom of Locoto. Medialuna, meanwhile, lies sleeping in the jungle. Many adventures begin because everyone wants to stop the witches, save the princess, and protect the castle.