teru cats, robin (honkai: star rail), honkai: star rail, honkai (series), 1girl, 2boys, aqua eyes, arms behind back, bare shoulders, bdsm, black suit, blue hair, blush, bondage, bound, bound arms, bound wrists, breast bondage, breasts, business suit, choker, cleavage, collar, detached sleeves, dragging, dress, formal clothes, gag, gagged, hair between eyes, halo, halo behind head, head wings, jewel under eye, kidnapping, large breasts, long hair, multiple boys, pulling, purple choker, purple collar, purple rope, restrained, rope, rope gag, shibari, shibari over clothes, strapless, strapless dress, suit, sunglasses, very long hair, white dress, white wings, wings