Briar is a woman with short wavy blonde hair with black iris, red-rimmed-and-white pupil eyes. She wears teal earrings resembling the Terastal phenomenon, a purple jacket, held by a black ribbed shirt, red pants and black loafers. The golden-colored designs on her shirt resemble that of the Scarlet/Violet book cover designs. 
Briar is an ecstatic woman who spends a lot of her time researching the phenomenon of Terastalization in Pokémon. She, being the descendant of Heath.