rui (rei leyi), endministrator (arknights), female endministrator (arknights), arknights, arknights: endfield, absurdres, commentary request, highres, 1girl, arms behind back, black coat, black pantyhose, black shoes, coat, dot nose, full body, grey eyes, grin, leaning to the side, loafers, long sleeves, looking at viewer, no mask, open clothes, open coat, pantyhose, shoes, short hair, simple background, smile, solo, watch, white background, wristwatch