kusui aruta, original, 1girl, :p, adjusting clothes, adjusting swimsuit, armpits, ass, bent over, breasts, brown eyes, brown hair, cameltoe, cloud, day, female focus, from behind, hair ribbon, large breasts, lens flare, looking back, one-piece swimsuit, outdoors, purple one-piece swimsuit, purple school swimsuit, ribbon, school swimsuit, short twintails, sky, solo, sun, swimsuit, thighs, tongue, tongue out, twintails, wading, water