1girl, animal_ear_fluff, animal_ears, arknights, bare_shoulders, envelope, from_side, gradient_background, hair_over_one_eye, holding, holding_envelope, letterboxed, long_hair, looking_at_viewer, looking_to_the_side, parted_lips, pingdiguo, pink_eyes, pink_hair, pozyomka_(arknights), solo, upper_body, very_long_hair, white_background, wolf_ears