1girl, bad_twitter_id, black_socks, blue_jacket, blush, chair, comiching, green_ribbon, green_skirt, idolmaster, idolmaster_cinderella_girls, jacket, kneehighs, neck_ribbon, on_chair, open_mouth, penis_measuring, plaid, plaid_skirt, ribbon, ruler, school_chair, school_uniform, sitting, skirt, socks, solo, spread_legs, sweatdrop, tachibana_arisu