2girls, ass, bottle, brown_hair, hair_ornament, hairclip, idolmaster, idolmaster_cinderella_girls, idolmaster_cinderella_girls_starlight_stage, long_hair, multiple_girls, musical_note, orange_eyes, orange_hair, ryuzaki_kaoru, short_hair, short_shorts, shorts, tachibana_arisu, water_bottle, white_background, yama_tatsuo