2girls, =_=, animal_ears, bare_shoulders, barefoot, blue_one-piece_swimsuit, bob_cut, closed_eyes, collarbone, competition_school_swimsuit, ear_covers, grey_hair, hair_ornament, hairband, hairclip, horse_ears, horse_girl, horse_tail, multiple_girls, nishino_flower_(umamusume), one-piece_swimsuit, purple_hair, purple_hairband, school_swimsuit, seiun_sky_(umamusume), short_hair, sitting, squatting, swimsuit, tail, tracen_swimsuit, umamusume, x_hair_ornament, yonedatomo_mizu