Chapter 495 - 20 Dark humans
Now came back to the main matter,
Sometime later those Warriors already bring those dark human and they directly went inside of the investigation room. The old King already waiting for those Warriors so after seeing them he become happy and quickly told them to put those humans.
After doing that those Warriors came out of the investigation room while the old king already starting reading the memory of the people. Naturally not everyone was the dark human and just after reading their memory the old king able to know that. But you can say most of those humans were dark humans and the old king was now busy reading the memory of those people one by one.