C710 Why Not

There's also a trace of black smoke floating in the air above this formation.

This was Lu Yu's Netherworld Heavenly Slaughter Formation. Back then, even Daolord's experts would die under this formation.

Of course, Lu Yu wouldn't show any mercy when dealing with these ancient demons.

"All of you better beg me not to let me see this. Otherwise, I won't mind raising my cultivation level