rui (rei leyi), shu (arknights), arknights, absurdres, highres, revision, 1girl, alternate costume, black shirt, black skirt, black thighhighs, blonde hair, closed mouth, colored extremities, dragon horns, dragon tail, glasses, grey hair, hand up, horns, leaning forward, long hair, long sleeves, looking at viewer, multicolored hair, necktie, purple necktie, sailor collar, school uniform, shirt, simple background, skirt, smile, solo, standing, tail, thighhighs, very long hair, white background, white sailor collar, yellow hands, zettai ryouiki