フィーナ・ファム・アーシュライト

Feena is the princess of the Kingdom of Sphere on the moon. In order to become more knowledgeable about Earth and be able to follow in her mother's footsteps, she comes to Earth in a homestay with the family of the deputy librarian, Hozumi Sayaka. Since she was very young, she has always wanted to know more about the Earth and some day she hopes to surpass her mother in trying to bridge the gap between the Earth and the Kingdom of Sphere. She is well educated in terms of literature and science and has great sword skills. [Edited from Wikipedia & Getchu]