Thread:Lord Hyōga/@comment-173.76.132.197-20140207043225/@comment-4576906-20140207160805

To be honest, the language isn't clear, but it's likely referring to Kohaku being the dominant protector of both Rin and Sango. Sesshomaru left Rin in Kaede's village, so he wouldn't be her "dominant" protector anymore.