C1340 What realm?

What realm is this?

This action continued for three days. During this period, Dugu Hong was no longer able to sense whether his arm was still there or not. That's right, he was already numb to it. He was numb to a certain degree. Then, he didn't know what to feel anymore. Yes, human nerves had a certain degree of tolerance. Once it exceeded that level of endurance, everything would be different