1girl, o, armpits, arms_up, bad_twitter_id, black_shirt, blush, breasts, earrings, idolmaster, idolmaster_cinderella_girls, jewelry, komatsu_ibuki, lamp_p9, looking_at_viewer, medium_breasts, necklace, ponytail, shirt, simple_background, sleeveless, sleeveless_shirt, solo, upper_body, white_background