kamiko to seiryoku, gekota, misaka mikoto, toaru majutsu no index, frilled swimsuit, absurdres, highres, 10s, 1girl, 2010, all fours, bare legs, bare shoulders, barefoot, beach, bikini, blush, brown eyes, brown hair, collarbone, day, feet, female focus, frills, hair ornament, hairpin, lens flare, navel, ocean, official alternate costume, outdoors, polka dot, polka dot swimsuit, ruffle bikini, sand, short hair, solo, stomach, sun, swimsuit, tankini, toes, water