firefly (honkai: star rail), firefly (spring missive) (honkai: star rail), honkai: star rail, honkai (series), absurdres, commentary request, highres, 1girl, aqua bow, aqua hair, arm up, black hairband, blue pupils, bow, breasts, buttons, chest bow, cowboy shot, floating hair, gradient hair, grey hair, grey skirt, hair between eyes, hair ornament, hairband, long hair, long sleeves, looking at viewer, medium breasts, multicolored hair, murasakinoa, official alternate costume, open mouth, plaid clothes, plaid skirt, pleated skirt, puffy long sleeves, puffy sleeves, purple eyes, sailor collar, school uniform, serafuku, shirt, simple background, skirt, smile, solo, standing, wavy hair, white background, white serafuku, white shirt