"Indeed, the core of these Netherworld Slaves is the Netherworld Core. It floats within their bodies and serves as the place where they store Netherworld Qi, much like the vortex in the lower stages of Dou Qi cultivation."
The First Elder patiently explained to Xiao Ze, "I suspect that lone Dou Zun's target is that Netherworld Core."
"A Netherworld Core capable of storing Netherworld Qi? But isn't Netherworld Qi a fatal poison to normal living beings?"
Chapter 173