firefly \(honkai: star rail\), 1girl, solo, thighhighs, hairband, long hair, black hairband, bow, looking at viewer, hair intakes, hair bow, jacket, lying, closed mouth, black thighhighs, cropped jacket, long sleeves, white bow, skirt, smile, pleated skirt, grey hair, on side, hair between eyes, no shoes, blue eyes, sidelocks, black jacket, water, zettai ryouiki, dress, off shoulder, feet, ripples, shirt