sonchi, chisa (wuthering waves), wuthering waves, absurdres, commentary, highres, symbol-only commentary, 1girl, arm cutout, black choker, black hair, black jacket, black serafuku, black shirt, black skirt, blurry, blurry background, blush, breasts, choker, closed mouth, clothing cutout, collarbone, cowboy shot, envelope, fingernails, hair ribbon, holding, holding envelope, incoming gift, jacket, jewelry, letter, long hair, long sleeves, looking at viewer, love letter, medium breasts, multiple rings, neckerchief, pink petals, red eyes, red neckerchief, red ribbon, ribbon, ring, sailor collar, school uniform, serafuku, shirt, skirt, solo, stairs, white sailor collar