rotroto, iroha (anniversary swimsuit) (blue archive), iroha (blue archive), blue archive, absurdres, highres, 1girl, all fours, bare shoulders, blue halo, blue one-piece swimsuit, blush, bow, breasts, casual one-piece swimsuit, closed mouth, collarbone, frilled one-piece swimsuit, frills, grey eyes, hair between eyes, hair bow, halo, looking at viewer, off shoulder, one-piece swimsuit, polka dot, polka dot swimsuit, red hair, side ponytail, simple background, small breasts, solo, swimsuit, white background