okiura, cecilia alcott, charlotte dunois, huang lingyin, laura bodewig, infinite stratos, untied bikini, non-web source, novel illustration, official art, 10s, 4girls, adjusting clothes, adjusting swimsuit, ass, ball, beach, bikini, black bikini, black ribbon, blue bikini, blue hairband, breast press, breasts, closed eyes, cloud, collarbone, day, drinking, eyepatch, green eyes, hair ribbon, hairband, high ponytail, large breasts, long hair, lying, multiple girls, ocean, on stomach, orange bikini, orange ribbon, outdoors, own hands together, purple eyes, ribbon, short hair, sideboob, sitting, sky, small breasts, swimsuit, thighs, twintails, volleyball (object), volleyball (sport), wet