Rule 34 Dev - 1girl alternate_costume azumanga_daiou black-framed_eyewear black_skirt blush brown_eyes brown_hair cellphone closed_mouth clothing_cutout flip_phone glasses heart_cutout helloaite highres holding holding_phone long_hair long_sleeves looking_at_viewer mizuhara_koyomi phone skirt solo sweater white_background white_sweater|23347677717