1girl, ahoge, animal_ears, black_sports_bra, breasts, brown_hair, chiachun0621, cleavage, clothes_lift, clothes_pull, horse_ears, horse_girl, horse_tail, kitasan_black_(umamusume), midriff, multicolored_hair, navel, outdoors, running_track, shirt_lift, short_shorts, shorts, shorts_pull, solo, sports_bra, streaked_hair, sweat, tail, umamusume, white_hair