1girl, bare_shoulders, blue_eyes, blush, breasts, britomart_(fate), center_opening, cleavage, double_bun, fate/grand_order, fate_(series), gold_one-piece_swimsuit, gold_trim, grey_hair, hair_bun, hairband, highleg, highleg_swimsuit, large_breasts, leaning_forward, long_hair, looking_at_viewer, o-ring, one-piece_swimsuit, open_mouth, outstretched_arm, pointy_ears, smile, solo, swimsuit, taut_clothes, taut_swimsuit, tetsuhige, thighs, twintails, two-tone_swimsuit, very_long_hair, wading, water, wet, white_one-piece_swimsuit