A pillar of light appeared, instantly teleporting the wind and cold rain to Tianyuan City.

Wu Kun, who has done this, is not idle, he still has his own tasks, and now he also has to monitor the situation in an area, and everyone in the entire Upper Realm Fortress cannot be idle.

The most important thing now is to improve your cultivation and strength, and increase the cost of surviving in this turmoil. Wu Kun is also using his spiritual sense to monitor the front while cultivating.

In a full month, Gray had occupied almost two-thirds of the outside of the Four Sanctuary Domains, which were no longer suitable for survival, and all those who had gone to the rescue had returned.

Wu Kun had seen this scene, because there was a gray area of death in the god's residence, which was exactly the same as the gray area he saw in front of him!

He easily linked the two together, and now Wu Kun was most worried about the Nether, there were so many people in the Nether that he cared about, if this gray terror broke out in the Nether, if there were also gray creatures in the Nether......

The consequences are simply unimaginable! Because there are so many altars in the Nether, and the strength of the Nether people is not enough at all! The strongest is only the Supreme! If the gray creatures invade the Nether like they invade the Upper Realm, the consequences will be catastrophic...... Almost no one survived!

Fortunately, Nian Wushuang told him that the situation in the Nether Realm is very stable now, and for the Upper Realm, the Nether Realm is also an extremely important barrier, so there have always been people monitoring the Nether.

Another month had passed, and everything outside of the Four Sanctuaries had been taken over by the gray! And the people inside hadn't even seen the existence of the gray creatures!

Many people realized the gravity of the situation, and everyone clenched their weapons as if they were facing a great enemy. Fortunately, everything within the Four Sacred Domains is in order, and everything is on a proper track.

Another month has passed, and there is still no movement in the outside world, and some people have begun to relax.

"Everyone, be vigilant! According to our mighty guess, those creatures are already preparing to attack!"

For a while, the people in the city began to talk about it.

"What do you think those gray creatures look like?"

"It should be that kind of deformed look, right? I think they are just bluffing, we have countless strong people here, how can they break it?"

"Yes, we have twenty-four Saint-rank powerhouses! In the next few months, there are a few more Saint-rank weapons, and there are at least twelve Saint-rank weapons on the walls of each domain, even if the honorable-level powerhouses come, they can't break it. ”

"Yes, yes, the current Four Sacred Domains can only be described as impregnable. ”

......

These are optimistic views, the people who hold this view are not very strong, they are still far from the truth of the facts, the stronger the people, the more worried, after all, they all know that incident 20,000 years ago, in that battle, more than 100 of the strong people of the Holy Rank alone died, and what are the twenty-four now?

Therefore, those strong men in the upper echelons, who are also the real leaders, have long ordered to start building a city wall that is the same as the outermost one every 10,000 miles. Twenty such walls have been built, and twenty roads are not enough for these people to rest assured, but due to the limited time and materials, they can only build so much.

However, the people in the upper realm still have to rejoice, 20,000 years ago was an era of talents, and all kinds of geniuses were born, and Renzun, Demon Venerable, and Demon Venerable were all elites at that time.

But it was also because the whole world was so badly injured at that time that it later developed into this, and many powerful inheritances lost their heirs

After seven days of nervous waiting, one night, these gray creatures swept in......

"Actually...... ...... same as we do."

"This is also ...... Too much......"

All the people on the city wall were frightened by this scene, and even Wu Kun was surprised by the scene in front of him.

Because, the dense crowd of people in front of them filled all the open space in front of them like zombies! Some of the slow rushers were directly trampled to death at the feet of those who caught up behind!

"Hold on!"

A god king shouted, all the people regained their senses, and began to slaughter these gray creatures in front of them, which can really only be described as slaughter, because these gray creatures are too weak, and Wu Kun can sweep through them with one blow.

When the sword goes down, the ground in front of it is empty, but it will soon be covered with creatures rushing up from behind, and then another sword, it will become empty again, and the gray creatures will fill the open space again......

And so on and so forth...... Wu Kun's hand was numb, and the whole person was also in a state of numb mechanized sword swinging, he didn't know how many gray creatures died in his hands, and he didn't even know how many swords he swung!

Many people even had to go down to the city and replace it with someone else because they ran out of spiritual power. In some places, there are even ten people who have changed!

However, the onslaught of the gray creatures did not stop!

After Wu Kun numbly swung his sword for a long time, he finally felt that something was wrong, this could not happen at all, if these were really gray creatures, even if they were slaughtered like this, there should be an endless moment, because he himself had killed billions of monsters! And on the city tower, people like him who had killed countless gray creatures were definitely more than 10 million! or even more!

The god-level powerhouses of the entire Upper Realm are far more than tens of millions!

This is also to add those gray creatures killed by supreme-level powerhouses, and as for the number of supremes, it is even more uncountable......

If you add up the gray creatures that everyone killed, that number is already astronomical!

First of all, not to mention whether there are so many gray creatures, and even if there were, they would not be used in this way! You must know that for any living thing, these are the strong foundations of the race.

Wu Kun's hand speed deliberately slowed down the next time he swung his sword, and then he wrote down the appearance and characteristics of all the gray creatures that appeared in front of him. He suspected that these were all illusions, that these creatures did not exist at all!

When he swung the fiftieth sword, he finally discovered the anomaly!

The scene he saw in front of him was exactly what he saw when he swung his first sword!

Wu Kun swung out a sword, and when the next wave of creatures appeared, sure enough, it was exactly the same scene as when he swung the second sword before!

Then everything corresponded, and Wu Kun was horrified in his heart! This was a scam at all! A scam that consumed their strength!

Looking at the panting compatriots around him, Wu Kun thought of a terrifying thing, they consumed so much, and those gray creatures might not have suffered any casualties!