The Netherworld King, A Slave?

What the Netherworld King was more interested in was that this Earthling called Wang Zhong had extremely powerful endurance. Furthermore, his tolerance and recovery abilities were top-grade. This was very interesting.

He clearly understood that once he appeared in the world, the Star Alliance would definitely not sit and watch, and a powerful group of Gold Cores would probably be sent over to fight him. After all, Mu Zi was a mere Void Core, and it was difficult for him to rapidly progress qualitatively in such a short period of time. If his body endured too many attacks during the battle, or if his power surpassed the limits that his body could endure, then Mu Zi's body could possibly be destroyed. It would be too much of a pity.