1girl, d, animal_ears, bikini, bikini_under_clothes, blue_bikini, breasts, daiwa_scarlet_(umamusume), gaze_on_me!_outfit_(umamusume), grin, hair_intakes, hair_ornament, half-closed_eyes, horse_ears, horse_girl, kuroki_(ma-na-tu), long_hair, male_swimwear, navel, one_eye_closed, open_mouth, orange_hair, partially_submerged, purple_eyes, shirt, smile, solo, swim_trunks, swimsuit, teeth, tiara, tied_shirt, twintails, umamusume, upper_body, very_long_hair, water, wet, wet_clothes, wet_hair, wet_shirt, white_background, white_shirt