“Sylpheed
Look at the invisible
Hear what you can't hear
The truth is ahead”
Fie is a quiet girl who doesn't take a strong interest in many things. She doesn't focus much on studying, and tends to slack off by sleeping anywhere around the school.
Nevertheless, as she was raised as a jaeger, Fie is more focused and serious on the battlefield. As she matures, she becomes much more playful and interactive, often teasing the others.
A girl with no family or friends, she wandered until she came upon Zephyr, a jaeger corps who claimed to be undefeatable and on par with its rival group, the Red Constellation. Fie was found and raised by Rutger Claussell, the leader of Zephyr known as the Jaeger King.
As a jaeger, she was given the codename "Sylphid", specializing in gunswords and was well-regarded for her physical abilities, making her an agile fighter. She was also on good terms with fellow members Leonidas and Xeno. Rutger was especially fond of his adoptive daughter, as he felt like an actual human and not a "mindless creature" with her around. Fie was grateful to Rutger for taking her in.
Rutger eventually fought Baldur Orlando, the leader of the rival jaeger corps Red Constellation for three straight days, both of them eventually dying in the process. Zephyr eventually disbanded with the death of their leader. It was later revealed that Rutger had informed Leonidas and Xeno to find a way to bring him back from the grave, something which Fie was not aware of. After some time wandering she is found by Sara Valestein, who recovers her, and soon she is enrolled in Thors Military Academy where Sara teaches.
While she initially comes into conflict with Laura, as someone who lived a completely different lifestyle from her, the two eventually become close friends, and she does a lot of growing up by participating in school life. Most notably, her presence in the gardening club where she became good friends with Edel and learned how to look after grown things.
