shiroko \(blue archive\), shiroko \(swimsuit\) \(blue archive\), 1girl, animal ear fluff, animal ears, barefoot, black one-piece swimsuit, blue eyes, breasts, competition swimsuit, cross hair ornament, extra ears, full body, grey hair, hair ornament, halo, low ponytail, medium breasts, medium hair, mismatched pupils, multicolored swimsuit, official alternate costume, one-piece swimsuit, ponytail, simple background, sitting, solo, swimsuit, white background, wolf ears, masterpiece, best quality, very aesthetic