firefly (honkai: star rail), firefly (vision) (honkai: star rail), honkai: star rail, honkai (series), 1girl, black dress, braid, buttons, cape, closed mouth, double-breasted, dress, epaulettes, floating hair, grey hair, hair between eyes, hair intakes, hair ribbon, kosmos5896, long hair, looking at viewer, official alternate costume, purple eyes, red cape, red dress, ribbon, simple background, smile, solo, two-tone dress, upper body, white background