wnb mark, artoria pendragon (fate), saber (fate), saber alter, fate/stay night, fate (series), 00s, ahoge, alternate costume, bikini, black bikini, blonde hair, blue eyes, brown eyes, drinking straw, dual persona, food, frilled bikini, frills, holding, holding drinking straw, holding swim ring, innertube, official alternate costume, shaved ice, siblings, side-tie bikini bottom, swim ring, swimsuit, transparent background, twins, white bikini