Rule 34 Dev - 1girl black_hair black_skirt blush bow bowtie cardigan fang hair_bobbles hair_ornament highres kaai_yuki kyuu_(uyuuuuukii) looking_at_viewer low_twintails one_eye_closed open_mouth pink_background pink_cardigan school_uniform simple_background skirt smile solo twintails vocaloid yellow_eyes zako_(vocaloid)|25465096332