I did it. God is, well, not dead, but I sent him back to leave humanity alone. Go away, old fart.
It was a nice ending. Pretty short and minimalistic, but they did a good job in making clear how the stress and pressure is finally over, I thought. Very nice, I like Gins ending a lot.
I did get to keep demons for NG+. Didn't matter, that I couldn't use them in the final bit.
About Belberith, I did the hard free battle, and had enough money to make Tao Tie into one of those sun-carrying birds. Which gave the MC flight. And I had a Catoblepas (spelling?), who gave me the seven-step ability. I wasn't strong enough to kill Belberith with one hit, but I made sure that the bird basically couldn't be beaten by it, as couldn't the MC (at least not easily, he had only anti-physical). I think Catoblepas died, maybe, he wasn't made to be nearly invincible against the Bel. I even had to defeat one of the sect-jerks, but my Holy Dance, despite only making to hits very often, is so superpowerful that everything falls.
The rest wasn't hard. But there was only a hard free battle, instead of a regular one, which were, if memory serves, only included in overclocked. Considering you can save here, this seems like a point where you can get stuck with an underpowered team. Especially problematic, if you have the long fight against all the Bels, and don't have the ressources to create an Angel with Blood Wine. In my first playthrough, I really needed that ability. For whatever reason, I did have Holy Dance and Drain back then, too. Maybe for the other teams and demons.
I was very surprised, not unpleasantly so, that I didn't have to fight Loki and Cain. I assumed you had to do that every time, except in Yuzus ending. A bit of a shame, because I love Lokis design here, and would like to have him on my team.
So, after Belberith, we get immediately to the server, with a few semi-hard demons. Seriously, after all those jerks hat either reflect physical inherently, or have that annoying ability that gives one reflect, it feels way easier now. Generally, after Belberith, the rest was pretty easy. Babel just wasn't much of a problem, even after losing my demons. Funnily enough, it was not the MC who finished Babels final form, but Atsuro. Good for him, with all those physical reflect jerks, he couldn't do much. And, honestly, he always felt weak compared to the physical demons I used.
But on the last day, it was mainly the MC show anyway. I used the others for stuff, but the main goal was always to get him to the boss and Holy Dance everything to dust.
I already forgot which boni I chose, but I did take 4 demons and got rid of the level cap for fusing, which feels like the most important bit. I also kept my abilities, no way am I giving them up.
I will probably next do the Amane route, and leave Naoyas route for the very end, where I will try to kill Satan, or whoever the superboss is. Or I might do Yuzu now. Someone with an 8th day.