sumiyama sui, chiaki (blue archive), chiaki (swimsuit) (blue archive), blue archive, commentary request, highres, > o, 1girl, bikini, blush, breasts, brown shrug, cleavage, curved horns, demon horns, fishnet shrug, hair ornament, hair scrunchie, halo, horns, medium breasts, navel, o-ring, o-ring bikini, official alternate costume, one eye closed, orange scrunchie, purple eyes, red halo, scrunchie, see-through clothes, see-through shrug, shrug (clothing), slit pupils, smile, solo, swimsuit, tongue, tongue out, white bikini