Hilde has platinum blonde hair and bright blue eyes. She's tall and appears to be around the same age as Leon.
Though not much is seen of Hilde, she appears to be very mature, serene and dignified. She takes her defeat at Alma's hands gracefully.
Hilde appears during the Jewel Star Grand Prix arc as the favorite to win the tournament. Hilde comes from a different magic school than either Akari or the French sisters.
Hilde makes good progress in the tournament until she's unexpectedly defeated in the quarterfinals by Alma (disguised as Laiya). She later meets with Akari and her friends to warn her about her opponent's power, and leaves afterwards.