Kilala is a cheerful and energetic teenage girl who is a big fan of Disney characters, especially the Disney Princesses. Kilala hopes to become like them someday, but her clumsy and spunky attitude puts her very behind. She is in a different place from her parents, and wishes to meet them again someday. Her best friend is Erica and her pet is Tippe. She newly holds the power of the princesses after awakening Rei. She is enthusiastic about the world she is traveling in, but cares much more about her best friend's well-being.
It is revealed at the end of the series that Kilala is the Seventh Princess.(http://en.wikipedia.org/wiki/Kilala_Princess)