Gomala
Just because Amalgo was too on-the-nose.
NOTE: These are all Karm spitballs, nothing is final, I just want these somewhere in case I disappear into a Corvus hole.
So, pretty much my approach to this is don't show something if it's not going to be used. Chekovsburg. I think I'm probably going too far in the other direction, but we'll find a middle ground we're happy with when/if you get back.
So, Gomala is a tiny shantytown with only dozens of inhabitants, most if not all who contribute to its survival in a helpful if not essential way. It's not a city that's fallen, but a small haven that's risen from teamwork.
Zei, being a CATGIRL ROBOT, is able to suck up some excess mana from the various geysers spilling out of the world and help provide power to the location. Yeti yeti yeti is able to condense the omnipresent clouds into water for the town's basin, and gnome is able to shape various things like buildings and structures.
Hina is able is keep the workforce consistent by raising the dead as laborers and guards (thinking including a sibling figure of some kind for Hina as a small backstory hook for her, that's even more spitbally than the rest of this though), and Savesh is a big picture guy who was probably able to do all of this for himself for a while before he stretched his wingspan to bring others under his wing.
This offers an explanation why Koray is eager to do grunt work, and emphasizes the fact he isn't really a keystone piece. It also might make Savesh trying to power up Koray not just a for kicks thing, but a 'jeez I don't know how sustainable this is without giving the kid a boost.'
Just some thoughts.