Therese takes the form of a girl with short, rough-cut black hair wearing a set of very light and modified armor appearing to date from the 8th century, covered by a fighter pilot’s survival vest, she flies with a leather flight helmet to complement the vest and dashes through the sky with reckless abandon, zooming above the treetops and performing impressive aerobatics. When on the ground, she appears quite confident in herself and never refuses a drink or party, yet she takes her flying incredibly serious. She has declared herself a protector of Gensokyo’s skies, and patrols near and far searching for anyone harassing citizens from the air. In times of intense flight, her wings appear to glint as if metallic.