1girl, animal_ears, arknights, bad_pixiv_id, beret, black_jacket, black_shirt, blush, book, collared_shirt, fang, feet_out_of_frame, garter_straps, glasses, hair_ornament, hairclip, hat, holding, holding_book, holding_pen, izumi_roka, jacket, lapels, light_brown_hair, looking_at_viewer, neck_ribbon, official_alternate_costume, open_book, pantyhose, pen, purple_eyes, red_ribbon, ribbon, shirt, simple_background, sitting, skin_fang, smile, solo, tail, thighhighs, utage_(arknights), utage_(disguise)_(arknights), white_background, yellow_thighhighs