Nillril is a rather average height woman (5'8", 172 cm) She has dark brown, nearly black hair that falls in gentle waves past her shoulders. She has keen gray eyes that would pierce right through you. She has a smattering of freckles dusting her face, giving her a youthful, almost childish look. She isn't the skinniest woman, choosing to be fit instead of tiny. She is muscular and curvy and isn't ashamed of it. She looks like a younger, female version of her father, Glandaron.

On her own, she is a quiet, reserved and stern no-nonsense woman, but with her friends, she is loud, outspoken, and rather crude and shameless.