Spoilers for part 1

So, devils represent represent concepts, who may or not be real. So, technically, the concept of angels could create a devil, even if it's only a concept and doesn't exist. That being said, devils become powerful because of fears, right? And our boi Angel devil was pretty powerful, even if he got Makima'd. And if angels didn't exist, I don't think the Angel devil would be powerful at all, since angels are pretty much always seen as benevolent, and I don't believe devils are superstitious.

If angels are well perceived by humankind, then, I suppose the Angel devil is powered up by devil's fears, since it's logical that devils would fear angels. And I think Angel devil is less powerful than Pochita because angels haven't been on earth/hell in forever, so while they're not erased, they might have been forgotten about. And since og devil Lucifer was a fallen angel, I believe angels work on a very similar system as devils (maybe powered up by adoration? Idk) and get reborn on Earth when they die in heaven. And why haven't they been on Earth in forever? Well, because they're angels, and they simply don't spend all their time killing each other. So, if no one kill each other in heaven, no one get reborn on earth.

But, with the apocalypse coming, I think someone might start killing angels in heaven, or, like super powerful devils, some angels start showing up and beat up devils. But they won't be humanity's saviors, because they must be pissed at humans for all the devil contracts. I think they'll just fight demons on earth and humanity will be caught in the crossfire. And I think they'll consider hybrids/whatever the hell Asa is as devils and hunt them too.

Also, do you guys think there's a Jesus devil out there too? Not the antichrist, just a Jesus devil being nail powered or something.