shinohara kenji, index (toaru majutsu no index), misaka mikoto, megami magazine, toaru kagaku no railgun, toaru majutsu no index, duplicate, non-web source, official art, 2girls, barefoot, beach, bikini, blue hair, brown eyes, brown hair, casual one-piece swimsuit, cloud, day, flat chest, floral print, green eyes, hair ornament, hairclip, innertube, leaning forward, legs, loli, long hair, lying, multiple girls, navel, ocean, on side, one-piece swimsuit, outdoors, pink one-piece swimsuit, polka dot, short hair, skinny, sky, swim ring, swimsuit, water