1girl, animal_ears, arknights, bad_pixiv_id, beret, blush, book, book_stack, breasts, brown_hair, collared_shirt, feet_out_of_frame, glasses, hair_ornament, hairclip, hat, high-waist_skirt, long_sleeves, looking_at_viewer, medium_breasts, neck_ribbon, official_alternate_costume, open_clothes, open_shirt, purple_eyes, purple_headwear, purple_shirt, purple_skirt, red_ribbon, ribbon, shibuya_(kurokamishain), shirt, sideboob, sitting, skirt, solo, thighhighs, twitter_username, utage_(arknights), utage_(disguise)_(arknights), yellow_thighhighs