User blog comment:Collbrande-Ex-Caliburn/Hyoudou Issei's Peerage composition hopes/dreams/hypothesis/@comment-31137559-20170124200851/@comment-9595671-20170125061655

@B214: Sorry, I think you misunderstood me, what I meant with expanding the Evil Pieces system is by doing what the Azazel Cup is already doing, basically allowing someone to be considered part of a peerage by being assigned to it, but without needing to reincarnate them.

The pieces are still there, but if someone doesn't want to be a Devil, they could be registered under a certain piece(s) for Rating Games. The only downside would be that since they don't have the piece inside them, they don't get the benefits the piece would give.

That's one way an Angel could join a Devil's peerage, but not fall. Plus they still have the pieces they don't used, and we already saw in the Riser rematch short story that they can use substitutes in a Rating Game regardless if they're Devils are not, so this could expand on that.