Although Xiao Yan's Fire Lotus had cleared out a huge swath, there were still many Outer Realm Demons remaining.
Xiao Yan frowned tightly. Though he had learned about the great war between the Great Thousand World and the Outer Realm Demons during the Dragon Emperor's era, this was still his first time seeing so many of them.
He was actually rather puzzled. Where had all these Outer Realm Demons come from?
Could it be that Outer Realm Demons reproduced much faster than normal people?
That was not the case. The primary means by which Outer Realm Demons expanded was not reproduction, but corruption.
In other words, the vast majority of the countless Outer Realm Demons before Xiao Yan were not native Outer Realm Demons. They had been corrupted by the Evil Energy of the Outer Realm Demons and transformed.
The Outer Realm Demons had conquered countless lower planes. Not everyone in those lower planes had been slaughtered; a large portion had been transformed into Outer Realm Demons.
Once one did the math, it became clear just how enormous the numbers of the Outer Realm Demons truly were.
At this moment, Xiao Yan was surrounded by three Outer Realm Demons at the Heavenly Supreme realm.
Moreover, all three recognized Xiao Yan. After all, Xiao Yan was considered a rising star in the Great Thousand World. It was hard not to know him.
"Isn't this Xiao Yan, the Flame Emperor of the Endless Fire Domain? You actually showed up here. Excellent!"
"Excellent? Heh heh, my appearance marks your end. Do you still think it's excellent?"
"Heh heh, if we kill you, we'll earn the greatest merit. Lord Saint Heavenly Demon Emperor will surely reward us handsomely."
"Why waste words with him? Let's take him down together."
The three Heavenly Supreme Outer Realm