Rule 34 Dev - 1girl adjusting_eyewear blush book breasts brown_hair chalkboard classroom covered_erect_nipples female_focus formal_clothes glasses gradient_background hair_bun hair_up highres holding inomaru inwai_niku_kyoushi mature_female miniskirt pantyhose pencil_skirt school shirt short_hair single_hair_bun skirt solo standing teacher white_shirt|4166097624