nightmare (arknights), arknights, absurdres, commentary request, highres, 2girls, :<, :d, animal ears, black shirt, blonde hair, blue eyes, blush, cat ears, cat girl, dated, dual persona, floating hair, green background, hair ornament, happy birthday, heterochromia, long hair, mei aksss, multiple girls, off shoulder, open mouth, pantyhose, ribbed sweater, shirt, simple background, smile, sweater, twitter username, white pantyhose, yellow eyes, yellow sweater