2girls, alternate_costume, animal_ears, aqua_neckerchief, aqua_skirt, bad_twitter_id, black_footwear, blue_shirt, breasts, brown_footwear, brown_hair, ear_ornament, earrings, horse_ears, horse_girl, horse_tail, jewelry, large_breasts, loafers, looking_at_viewer, mmm_(mmm623), multicolored_hair, multiple_girls, neckerchief, red_neckerchief, school_uniform, serafuku, shirt, shoes, single_earring, sirius_symboli_(umamusume), skirt, socks, streaked_hair, symboli_rudolf_(umamusume), tail, umamusume, white_socks