1girl alternate_costume anastasia_(idolmaster) bad_id bad_pixiv_id banned_artist bare_shoulders blue_dress blue_eyes blush closed_mouth commentary detached_sleeves dress grey_hair hair_between_eyes idolmaster idolmaster_cinderella_girls looking_at_viewer off_shoulder sabet_(young_ouo) seiza short_hair sitting smile solo you're_stars_shine_on_me