taira (amlilith), hoshino (blue archive), seia (blue archive), blue archive, highres, 1girl, ahoge, barefoot, cosplay, covered navel, feet, hair bobbles, hair ornament, halo, heterochromia, jacket, long hair, low twintails, off shoulder, one-piece swimsuit, open clothes, open jacket, open mouth, pink hair, pink halo, seia (blue archive) (cosplay), sleeves past wrists, smile, solo, swimsuit, thighs, toes, twintails, white one-piece swimsuit, yellow jacket