User blog comment:B214/Question and Answers 2/@comment-24552694-20140327161251/@comment-24098614-20140327211958

I think that DanteRedgrave is right because if doesn't bring trust and faith in your master if you want your servants to die to get a Evil Piece removed from you. My favorite person for Issei to have as a servant for his Peerage would be Kuroka but I don't see that happening anytime soon.