akazaki yukino, hasumi (blue archive), hasumi (swimsuit) (blue archive), blue archive, absurdres, highres, 1girl, absurdly long hair, armpit crease, bikini, black bikini, black choker, black hair, black nails, black wings, breasts, choker, cleavage, collarbone, curvy, full body, hair bun, halo, hand up, huge breasts, long hair, nail polish, navel, oversized wings, parted lips, red eyes, red halo, sandals, simple background, single hair bun, solo, standing, stomach, swimsuit, thigh strap, thighs, toenail polish, toenails, very long hair, wet, white background, wide hips, wings