1girl, arm behind head, ass, ass visible through thighs, black one-piece swimsuit, black thighhighs, blush, bob cut, breasts, cameltoe, collarbone, covered nipples, covering navel, groin, hagane orchestra, hair ornament, hairclip, highleg, highleg swimsuit, long sleeves, looking at viewer, lying, on back, one-piece swimsuit, poru, purple eyes, purple hair, shiny skin, short hair, small breasts, solo, swimsuit, swimsuit under clothes, thighhighs, thighs, yuzuki yukari