1girl, blue_bow, blue_one-piece_swimsuit, bow, breasts, competition_swimsuit, fate/grand_order, fate_(series), grey_hair, hair_between_eyes, hair_bow, highleg, highleg_swimsuit, kurozawa_yui, large_breasts, long_hair, looking_at_viewer, one-piece_swimsuit, ponytail, red_eyes, sandals, seiza, sitting, solo, swimsuit, thighs, tomoe_gozen_(fate), tomoe_gozen_(swimsuit_saber)_(fate), tomoe_gozen_(swimsuit_saber)_(first_ascension)_(fate), two-tone_swimsuit, white_one-piece_swimsuit