rio (blue archive), rio (dress) (blue archive), blue archive, absurdres, chinese commentary, commentary request, highres, partial commentary, revision, 1girl, armpits, ass, back, backboob, bag, bare shoulders, bed sheet, black dress, black hair, black halo, blunt bangs, blush, breasts, bright pupils, clutch purse, dress, far side backboob, hair behind ear, hair spread out, halo, handbag, heat (uybh), jewelry, large breasts, long hair, looking at viewer, multicolored halo, necklace, official alternate costume, pearl necklace, red eyes, ring light reflection, ringed eyes, shadow, sidelocks, solo, strapless, strapless dress, sweat, top-down bottom-up, two-tone halo, very long hair, white pupils