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, the witches compete in the yearly casting spells competition. Every year the kingdom celebrates witches who show their talent by creating new spells. Gualichu has been practicing and is anxious about winning.