1girl, black_hair, black_pantyhose, black_sailor_collar, black_serafuku, black_shirt, black_skirt, facing_away, feet, from_behind, long_hair, long_sleeves, mattaku_mousuke, original, pantyhose, pleated_skirt, sailor_collar, school_uniform, serafuku, shirt, simple_background, skirt, sleeves_past_wrists, solo, standing, standing_on_one_leg, twitter_username, undressing, watermark, white_background