1girl, ass, bare_arms, bare_shoulders, black_hair, black_one-piece_swimsuit, blurry, blurry_background, blush, brown_eyes, closed_mouth, depth_of_field, looking_at_viewer, looking_back, matsunaga_kouyou, nose_blush, one-piece_swimsuit, original, ponytail, school_swimsuit, sidelocks, solo, swimsuit