1girl, 3, armpits, arms_up, bad_twitter_id, black_bra, black_panties, bra, breasts, cleavage, ichinose_shiki, idolmaster, idolmaster_cinderella_girls, lamp_p9, light_smile, long_hair, looking_at_viewer, medium_breasts, navel, panties, simple_background, solo, underwear, underwear_only, very_long_hair, white_background