murakami yuu, index (toaru majutsu no index), kanzaki kaori, misaka mikoto, sphinx (toaru majutsu no index), megami magazine, toaru majutsu no index, silver hair, absurdres, highres, non-web source, official art, 00s, 3girls, arms behind head, arms up, beach, bikini, breast envy, brown eyes, brown hair, calico (pattern), calico cat, cat, cloud, day, green eyes, half-tied shirt, lowleg, lowleg bikini, multiple girls, navel, one-piece swimsuit, outdoors, pink eyes, purple hair, ribbon, school swimsuit, seductive smile, shirt, side-tie bikini bottom, sky, smile, sweatdrop, swimsuit, tied shirt