kurumi kororin, kazusa (blue archive), blue archive, absurdres, commentary request, highres, 1girl, animal ears, back, black hair, blush, breasts, cat ears, closed mouth, colored inner hair, competition school swimsuit, competition swimsuit, extra ears, from behind, halo, multicolored hair, nape, one-piece swimsuit, pink hair, pink halo, school swimsuit, short hair, sidelocks, simple background, small breasts, solo, swimsuit, two-tone hair, white background