>>11296097
>Oh is that why I see that weird brand on a lot of slavery artwork?
Yes, it's the brand of the celestial dragons, they basically run the world. It's supposed to look like a dragon's talon/foot. Basically they can decide to enslave anyone for any reason, and it occurs a few times within the story. There are also human auction houses, where slaves are auctioned openly. Some great slavery worldbuilding.