1girl, animal_ears, black_hair, blue_one-piece_swimsuit, blush, breasts, competition_school_swimsuit, competition_swimsuit, horse_ears, horse_girl, katagirinanoka, kitasan_black_(umamusume), large_breasts, multicolored_hair, one-piece_swimsuit, red_eyes, school_swimsuit, simple_background, smile, streaked_hair, swimsuit, tracen_swimsuit, umamusume, white_background, white_hair