bimo (bimo koa), robin (honkai: star rail), honkai: star rail, honkai (series), absurdres, commentary, highres, symbol-only commentary, 1girl, alternate costume, black choker, black skirt, blue hair, breasts, choker, cleavage, crop top, green eyes, guitar, head wings, holding, holding guitar, holding instrument, holding plectrum, instrument, large breasts, long hair, navel, open mouth, plectrum, skirt, solo, stage lights, stomach, teeth, upper teeth only, very long hair, wings