Thread:HalberdBanryu/@comment-173.76.132.197-20140205171752/@comment-5126314-20140205173553

Kohaku and Rin become friends in both the Anime and Manga. I don't think Kohaku is her dominant protector, I would agree that it's Sesshomaru, but Kohaku and her are around the same age-ish, and go through a lot together, especially when Kohaku decides to travel with Sesshomaru after Kikyo dies.

It's not as though Rin can only form a strong bond with one character. She shares a bond with both Sesshomaru and Kohaku.