2girls, ahoge, animal_ears, black_hair, breasts, brown_hair, cleavage, copano_rickey_(umamusume), detached_sleeves, fang, fujitaka_nasu, hair_between_eyes, hair_ornament, horse_ears, kitasan_black_(umamusume), medium_breasts, multiple_girls, nervous_sweating, red_eyes, simple_background, sweat, umamusume