Sorry, didn't notice this question. Could you explain more? You start as normally with Aric's Mod and choose a race for MC and starting slave. They're each going to be pure-blood, 100% whichever race you choose respectively.
I mean, i've tried to select a dog as slave and i cant do it because no races are available at start after activate mod once restarted
https://itch.io/post/213176
