Finally, a reincarnated character is willing to use their position to end slavery/human trafficking. It's very refreshing after reading so many stories where the inhumanities of humans owning humans are clearly shown in the first episode/chapter but nothing happens in the series to adress it and it's something that just exists in the background. Rising of Shield Hero comes to mind.
Why introduce slavery to a story if there isn't important to the plot? First of all, it's just bad writing. Basic Chekov's gun. They introduce slavery and show it as a terrible thing and then it's just allowed to exist in the background. Second of all, oftentimes it's a fetish thing. Either the slave is completely obedient by some kind of spell or because the freed slave is just so grateful they devote everything to their new master.
And I'm not saying that every story set in a Europe inspired fantasy setting needs to talk about how slavery was an evil thing, but at the very least human trafficking and slavery shouldn't be used as cheap tropes
Anyway, I hope this means that they team upnwith other races against Morka and the other human supremecist kingdoms