kobayashi kobako, rio (armed) (blue archive), rio (blue archive), blue archive, absurdres, commentary request, highres, 1girl, alternate breast size (larger), black bodysuit, black hair, blush, bodysuit, breasts, breasts out, gigantic breasts, gloves, gradient background, huge nipples, large areolae, long hair, looking at viewer, navel, nipples, open mouth, pointy breasts, ponytail, puffy nipples, red eyes, sidelocks, solo, steaming body