1girl amagami black_eyes black_hair black_one-piece_swimsuit black_skirt black_socks bob_cut breasts competition_swimsuit full_body highleg highleg_swimsuit highres holding holding_clothes kneehighs nanasaki_ai one-piece_swimsuit pleated_skirt short_hair simple_background skirt small_breasts socks solo swimsuit two-tone_swimsuit unworn_clothes white_background yoo_tenchi