1girl, animal_ears, black_pantyhose, blush, breasts, brown_hair, from_behind, grey_hair, horse_ears, horse_girl, horse_tail, hugging_own_legs, leotard, looking_at_viewer, multicolored_hair, nontraditional_playboy_bunny, pantyhose, parted_lips, purple_eyes, purple_leotard, sakieko, short_hair, simple_background, sitting, solo, special_week_(umamusume), strapless, strapless_leotard, tail, umamusume, white_background