Thread:B214/@comment-203.87.147.234-20170224021028/@comment-30924344-20170224033851

Great theory. For ExE, it would makes sense for it to be "Eternal Emperor". Now the meaning of eternal in this context would be: of truths, valid for all time; essentially unchanging. The "of truths, valid for all time" would mean no matter what, Issei is going to be around for as long as he lives and the "essentially unchanging part" means will not undergo anymore changes meaning that ExE is his last powerup.