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, Dragon Ferucho tries to turn Medialuna into princess stew. Petunia runs to Chacabuco and asks him for help. When Chacabuco appears, Dragon Ferucho becomes upset and tries to eat Chacabuco, and Medialuna manages to escape.