Wu Yu continued to shout outside Underworld Dragon's Den as Primitive Demon King, declaring his intention to enter.

However, three days and three nights later, he was still being ignored. Just as Wu Yu started to doubt his own approach, a severe voice rang out from Underworld Dragon's Den.

"Primitive Demon King, what manner of trickery is this? A sly and cunning wretch like you, plotting to enter Underworld Dragon's Den? Get out of Fiendish Underworld Metropolis! If I see you again, I will skin you alive and feed you to the demons!"

The voice thundered from within Underworld Dragon's Den.

There were originally demon kings clustered around Wu Yu and denigrating him, and now they all backed away with reverent looks.

From their reaction, Wu Yu naturally knew that the voice coming from within was definitely the master of Fiendish Underworld Metropolis, Diabolical Dragon King!

Wu Yu did not expect that his showy declaration...