A seemingly ordinary girl, Ada Niezgódka, finds her way into the eponymous Academy to explore the world of fairy tales, imagination and creativity. With the help of a crazy, talented teacher, professor Ambroży Kleks, she develops her unique abilities and also stumbles upon a clue that will help her unravel the biggest secret of the family...

A woman stumbles upon a valuable artifact, the crown that belonged to Casimir the Great.