1girl, animal_ears, ass, blush, from_behind, green_ribbon, hair_ribbon, horse_ears, horse_girl, horse_tail, long_hair, mejiro_mcqueen_(ripple_fairlady)_(umamusume), mejiro_mcqueen_(umamusume), official_alternate_costume, one-piece_swimsuit, purple_eyes, purple_hair, ribbon, solo, swimsuit, tail, twitter_username, umamusume, umayasu