Rule34.pub - mumumu hoshibito, honkai (series), honkai: star rail, firefly (honkai: star rail), arms behind back, black hairband, blush, bondage, bound, bow, breasts, female, gag, green bow, green ribbons, grey hair, hair between eyes, hair ribbon, hairband, hairbow, long hair, medium breasts, navel, nipples, pelvic curtain, perky breasts, restrained, ribbon, solo, topless, absurdres, highres, simple background, white background