Rule 34 Dev - 1girl absurdres black_skirt blue_archive blue_necktie blush breasts collared_shirt halo highres holding holding_pen indoors kuro_(rudyan0128) long_hair long_sleeves mechanical_halo medium_breasts monitor necktie parted_lips pen pleated_skirt purple_eyes purple_hair shirt skirt solo two_side_up white_shirt yuuka_(blue_archive)|21103316910