1girl, animal_ears, blue_one-piece_swimsuit, blue_sky, brown_eyes, brown_hair, closed_mouth, hair_over_one_eye, horse_ears, horse_girl, horse_tail, jacket, long_hair, long_sleeves, maru_(hachi_47923), one-piece_swimsuit, open_clothes, open_jacket, outdoors, ponytail, red_jacket, sky, solo, stretching, swimsuit, tail, tracen_swimsuit, tracen_training_uniform, track_jacket, umamusume, vodka_(umamusume)