1girl, bare_shoulders, blue_eyes, blush, breasts, britomart_(fate), britomart_(final_ascension)_(fate), casual_one-piece_swimsuit, center_opening, cleavage, double_bun, fate/grand_order, fate_(series), gold_trim, grey_hair, hair_bun, hairband, highleg, highleg_swimsuit, large_breasts, long_hair, looking_at_viewer, matsuryuu, o-ring, one-piece_swimsuit, pointy_ears, smile, solo, swimsuit, taut_clothes, taut_swimsuit, thighs, twintails, two-tone_swimsuit, water, wet, white_one-piece_swimsuit, yellow_one-piece_swimsuit