Sieglinde Baumgarde

A teen genius, Sieglinde graduated from college at the age of nine and is the heir to the Baumgarde fortune. She is chosen to become a Dragonaut for the Lindwurm Unit, and her dragon partner is Amadeus, who is named after her now-deceased dog. Due to her studies, she has been lonely since her youth, and she considered Amadeus her only friend before it passed away.

(Source: Wikipedia)