nui (nuinui0300), rio (blue archive), blue archive, absurdres, commentary request, highres, variant set, 1girl, black dress, black hair, black halo, breasts, cleavage, closed mouth, collarbone, dress, hair ornament, hairclip, halo, large breasts, long hair, looking at viewer, official alternate costume, red eyes, rio (dress) (blue archive), sitting, sleeveless, sleeveless dress, solo, very long hair