Board Thread:Naruto Discussions/@comment-25531508-20140923043228/@comment-22985334-20140925213019

Dan was Tsunade's lover, he wanted to become Hokage but was unfortunately killed. He died a long time ago so he wouldn't know that Hiruzen was old, and like I said before, because of when he was alive he would have a much better understanding of the true strength of the Senju brothers. If you're willing to tie them though then that's cool for now.