Mia is a smart and a bit strange 12-year old girl who's parents went missing after an accident. She has to 

come to terms in life in a boarding school in Florence. Her parents left for her is a bracelet and a book about unicorns which entitles "The Legend Of Centopia". Centopia is an amazing land, where anything could happen, in Centopia Mia is an elf! She also has a unique talent of talking to unicorns. The peaceful Centopia is now in danger and it's all up to her along with the elves, Yuko and Mo to save Centopia!

Credits go to Rainbowzkie for making the information