Nonette Enneagram (ノネット・エニアグラム, Nonetto Eniaguramu) a member of the Knights of the Round . She is the Knight of Nine. She attended military school with Second Princess Cornelia, who considers Nonette her senior. An upbeat and cheerful woman, she is one of the few people Cornelia actually fears. Her first and last names contain the Latin and Greek prefixes for 9, non- and ennea- respectively.