Proserpine is a kind and dignified, but shy Castanic Lancer from Stepstone Isle who had her tranquil life shattered by the Argon invasion, transforming her into an argonomorphed husk. Saved by a chance encounter with Calyssa, she was returned to her original form, and now fights for the Valkyon Federation, striving to prevent others from suffering her fate. Her ultimate aspiration is to restore peace to all of Arborea, while seeking the companionship and warmth her traumatic past denied her.