User blog comment:Collbrande-Ex-Caliburn/Hyoudou Issei's Peerage composition hopes/dreams/hypothesis/@comment-10330822-20161112235347/@comment-9595671-20161121072227

Uh... I'm confused, how would Azazel be needed to finish it? Volume 18 shows Brave Sain research is in Heaven's 5th Heaven area where it was also created, so wouldn't that mean it's the Angels who are working on it and not Azazel?

I realize that both the Devils and Fallen Angels did help in inventing the system due to some things they shared with the Angels, but I'm pretty sure that everything made about the System itself is done by Angel hands considering the whole falling issue.

Besides, Ajuka did create the Evil Piece technology which was used as part of creating the Brave Saints. So if anything, I'd he more likely to achieve the abililty for Brave Saints and Evil Piece trades than Azazel would ever be.

Plus there's the fact that the Fallen Angels don't have their own counterpart peerage system after all this time, and I'd think Azazel would have made one by now if he was able to make all the inventions of his we've seen.