chisa (wuthering waves), wuthering waves, highres, official art, 1girl, black serafuku, black shirt, black shoes, black skirt, black socks, clothing cutout, floating hair, flying paper, full body, holding, holding weapon, kneehighs, loafers, long hair, long sleeves, looking to the side, neckerchief, outdoors, paper, parted lips, red eyes, red neckerchief, school uniform, serafuku, shirt, shoes, skirt, socks, solo, standing, standing on one leg, tacet mark (wuthering waves), thigh strap, very long hair, weapon