zetsu red, firefly (honkai: star rail), honkai: star rail, honkai (series), commentary, english commentary, highres, 1girl, arms under breasts, bdsm, black hairband, bondage, bound, breasts, covered erect nipples, covered navel, gagged, gradient hair, green hair, grey hair, grey leotard, hairband, indoors, large breasts, laser, leotard, long hair, multicolored hair, padded room, purple eyes, sitting, solo, straitjacket, two-tone hair, wariza