kayoko (blue archive), blue archive, highres, 1girl, alternate costume, back, black choker, black dress, black hair, black horns, choker, closed mouth, demon horns, dress, ear piercing, earclip, from behind, gradient hair, grey halo, hair between eyes, halo, horns, kikucookie, long hair, looking at viewer, looking back, multicolored hair, piercing, red eyes, simple background, single wing, solo, two-tone hair, upper body, white background, white hair, wings