Spiritia Rosenberg's good, childhood friend, after which they've both known each other since they were children. Freudia is a calm and collected young woman who prefers to work alone. A lone wolf by nature, she is able to get things done without anyone's assistance. Despite not liking to be close to others, however, she shares a sister-like relationship with her. Her friends call her "Freu" for short.
Her weapon is Freudenstachel, which lets her quickly and rapidly fire icicles at opponents. In Rosenkreuzstilette Freudenstachel, where she is the star of the game, she can learn different techniques of hers from every boss she defeats.