User blog comment:B214/Talk About What You Want! 3/@comment-25290120-20141128143609/@comment-1359322-20141128144155

First of all, there's no [King] Piece, the [King] is just a status given to those that can reincarnate Devils. Second, even if Issei gains the right to become a [King], Issei is still Rias' [Pawn], Issei's position won't change. At best, Ise can't use the Promotion in Rating Game where he is [King] and he has his own team but aside from that, there will be no difference from before.