1girl, aikatsu!, aikatsu! (series), arms behind back, bare arms, bare legs, barefoot, beach, bikini, black bikini, blue eyes, blue hair, blue nails, blue scrunchie, blue sky, blush, breasts, closed mouth, cloud, day, feet, footprints, from side, hair ornament, hair scrunchie, halterneck, kiriya aoi, long hair, looking at viewer, looking back, nail polish, ocean, outdoors, piyotori, ponytail, scrunchie, shoulder blades, side-tie bikini bottom, sky, small breasts, smile, solo, summer, sunlight, swimsuit, toenail polish, toenails, toes, walking