hanasaki mahiru, rio (blue archive), blue archive, highres, 1girl, black hair, blush, breasts, bright pupils, cleavage, closed mouth, collarbone, collared shirt, hair ornament, hairclip, halo, hand on own cheek, hand on own face, head rest, large breasts, long hair, long sleeves, looking at viewer, lying, navel, on side, open clothes, open shirt, red eyes, sample watermark, shirt, smile, solo, very long hair, watermark, white pupils, white shirt