1girl, ahoge, bad_twitter_id, bare_arms, bare_legs, bare_shoulders, barefoot, blue_one-piece_swimsuit, brown_eyes, closed_mouth, expressionless, feet, foreshortening, full_body, jiryu50610218, long_hair, looking_at_viewer, one-piece_swimsuit, onii-chan_wa_oshimai!, oyama_mahiro, pink_hair, school_swimsuit, simple_background, sitting, soles, solo, swimsuit, tareme, toes, w, white_background