takafumi, original, absurdres, commentary request, highres, large variant set, variant set, 1boy, 1girl, age difference, black hair, blue eyes, blue male swimwear, blue one-piece swimsuit, breasts, competition swimsuit, covered navel, glasses, hand on another's shoulder, highleg, highleg one-piece swimsuit, male swimwear, medium breasts, multicolored swimsuit, navel, one-piece swimsuit, onee-shota, purple eyes, short hair, simple background, solo, striped clothes, striped one-piece swimsuit, swim briefs, swimsuit, white background