User blog comment:B214/Question and Answers 3/@comment-4547267-20140720022758/@comment-202.62.16.209-20140720215852

@anon In my opinion there is no such thing as King piece, think about it if Issei is given King Piece then he will have two kind of pieces inside of his body. Also there is no trait in King Piece other than to rule over his/her peerages.