mudrock (arknights), arknights, absurdres, chinese commentary, commentary request, highres, 1girl, alternate costume, ass, back, backless outfit, bare back, black choker, black dress, choker, closed mouth, cowboy shot, demon horns, dress, earrings, from behind, grey hair, horns, jewelry, long hair, looking at viewer, looking back, mu aii, pointy ears, red eyes, simple background, solo, very long hair, white background