1girl, alternate_costume, animal_ears, arm_up, black_jacket, brown_hair, cosplay, grey_skirt, hand_in_pocket, horse_ears, horse_girl, horse_tail, idolmaster, idolmaster_cinderella_girls, jacket, kusanagi_kaoru, long_hair, looking_at_viewer, multicolored_hair, necktie, purple_eyes, school_uniform, shibuya_rin, shibuya_rin_(cosplay), skirt, smile, solo, star_(symbol), streaked_hair, symboli_rudolf_(umamusume), tail, umamusume, very_long_hair