tang ke, firefly (honkai: star rail), honkai: star rail, honkai (series), absurdres, highres, 1girl, alternate breast size (larger), alternate costume, bikini, black hairband, blue pupils, breasts, gradient hair, grey hair, hair between eyes, hairband, holding, jewelry, large breasts, long hair, looking at viewer, multicolored bikini, multicolored eyes, multicolored hair, navel, necklace, on one knee, outdoors, sandals, smile, solo, swimsuit, thigh strap, two-tone bikini, two-tone hair, white bikini