2girls, d, animal_ears, ass, bare_shoulders, bikini, black_hair, blush, breasts, brown_eyes, brown_hair, day, detached_sleeves, hair_ornament, horse_ears, horse_girl, horse_tail, kitasan_black_(umamusume), kouhaku_nawa, large_breasts, long_hair, long_sleeves, looking_at_viewer, multiple_girls, navel, open_mouth, outdoors, parted_lips, partially_submerged, red_eyes, rope, sarong, satono_diamond_(umamusume), see-through_sarong, shimenawa, smile, swimsuit, tail, thighs, umamusume, underboob, water, white_bikini, white_sarong, xiujia_yihuizi, yellow_bikini