hanako (peanut), miyako (blue archive), miyako (swimsuit) (blue archive), blue archive, highres, 1girl, arms up, ass, blue one-piece swimsuit, casual one-piece swimsuit, cowboy shot, dated, frilled one-piece swimsuit, frills, from behind, long hair, looking at viewer, looking back, no halo, off-shoulder one-piece swimsuit, off shoulder, official alternate costume, one-piece swimsuit, purple eyes, simple background, solo, swimsuit, white background, white hair