1girl, ass, back, black_hair, blue_background, blue_buruma, blush, buruma, dated, grey_eyes, gym_shirt, gym_uniform, hair_ribbon, hair_tubes, kanon_(kurogane_knights), kantai_collection, long_hair, looking_at_viewer, looking_back, low-tied_long_hair, mizuho_(kancolle), one-hour_drawing_challenge, ribbon, shirt, short_sleeves, simple_background, smile, solo, very_long_hair, white_shirt