User blog comment:B214/Volume 23 discussion blog/@comment-31692804-20170429004504/@comment-86.174.156.218-20170430035835

I'm not saying a devil like Issei will become a God I'm saying you can't rule it out either. Kiba's sword of betrayer shows the the glitches in Heavens system are causing the line between holy and devil power to go into a state of flux allowing things that should be impossible to become possible.