1girl, amatsukaze_(kancolle), black_choker, black_panties, brown_eyes, choker, closed_mouth, dated, garter_straps, grey_hair, hair_tubes, kantai_collection, long_hair, looking_at_viewer, maru_(marg0613), one-hour_drawing_challenge, panties, school_uniform, serafuku, simple_background, sitting, solo, striped, striped_thighhighs, thighhighs, twintails, twitter_username, underwear, white_background