1girl, ahoge, animal_ears, arm_up, armpits, black_hair, black_thighhighs, breasts, cleavage, hand_up, horse_ears, horse_girl, horse_tail, kitasan_black_(umamusume), kouhaku_nawa, large_breasts, looking_at_viewer, multicolored_hair, red_eyes, reon_(dainagon_azuki), rope, shimenawa, short_hair, smile, solo, streaked_hair, tail, thighhighs, umamusume