2girls abo_(hechouchou) animal_ears black_hair blurry blurry_background breasts brown_hair cleavage detached_sleeves hair_between_eyes hair_ornament highres horse_ears horse_girl horse_tail kitasan_black_(umamusume) kouhaku_nawa large_breasts long_hair long_sleeves medium_hair multiple_girls open_mouth racetrack rope running satono_diamond_(umamusume) shimenawa sweat tail thighhighs umamusume