Dong-hyun gulped and listened intently. Ji-woo's show of power was enough to remind him how terrifying Ji-woo was. Despite the fact, it was only the tip of the iceberg of Ji-woo's real strength.
Basically, Ji-woo was like a natural enemy to the hunters with his Nullifier.
The hunters were the ones who had the blessing of God to handle the power of Nature through Mana. The stronger they were, the more they depended on Mana. And when Mana was useless, it would devastate them. Like people in complete darkness, still able to laugh and smile because of the fire. However, when the fire dissipated, there was nothing left for them. There was only a sense of loss and despair waiting for them as darkness devoured their souls.
Of course, there would always be exceptions. Everything would always have balance to maintain the order of the world.