Ancient Devils were terrifying beings.
How they appeared, no one knows.
Why they appeared, no one knows.
The only thing known to everyone was that as long as Ancient Devils were here, only destruction and chaos were awaiting.
So, it was necessary to get rid of Ancient Devils as soon as possible.
Other than the Nine Hell Serenity Dragon, there were also three other Ancestral Dragons who proved to be the ban of the Ancient Devils. They were Heaven Devouring Divine Dragon, World Exterminating Demon Dragon, and Extreme Void Cosmic Dragon.
Although these three Ancestral Dragons could also kill the Ancient Devils, their efficiency was a lot weaker than the Nine Hell Serenity Dragon. All Heaven Devouring Divine Dragon could do was to devour the Ancient Devils, however, very soon, he sensed very foreign energy appearing inside his body. This energy was dark and evil. And if reached the point of saturation, the Heaven Devouring Divine Dragon felt that he'll fall into a perilous situation where the danger of his body being taken over might appear.
Yes, he feared if he continued to devour these Ancient Devils, there might come a time when the Dark and Evil energy that has appeared will take over his body and control him completely. So, he stopped devouring them. This was also the reason why he was no longer able to do any harm to the Ancient Devils.
The World Exterminating Demon Dragon could use the Profound Meaning of Destruction to directly exterminate the existence of Ancient Devils. However, it turned out they were no existence. After exterminating them, if there was even a speck of their black fog left, they could be born again and cause a huge commotion. Not only this, for some reason, these Ancient Devils actually seemed to be resisting the Profound Meanings of Destruction very well.
It has to know that it was not the Law of Destruction but its Profound Meaning. On top of that, the Law of Destruction was one of the four Supreme Laws. But even so, for some reason, those Ancient Devils were able to resist it. Because of their resistance, no matter how World Exterminating Demon Dragon tried to destroy them, there would always be at least a speck or two of these Ancient Devils left in the air, causing them to appear again.
As for the Extreme Void Cosmic Dragon, it directly controls the space and would shatter the space where the Ancient Devils were standing. And with the shattering of space, the Ancient Devils were also shattered, but they never disappeared. They would just be divided into many parts and would appear again, and this time, they would appear in as many numbers as their previous body was shattered. Although it takes a lot of time for them to appear again, there was no doubt that they do appear.
On one hand, the fight against the Ancient Devils was rising quickly. All the people understood as long as Ancient Devils are here, it'll be extremely dangerous and only destruction and death were awaiting them. So, all the powerful people under the Heavens joined hands to suppress the Ancient Devils and seal as many as they can throughout the entire Heavens.
And on the other hand, the cosmic membrane of the Second Universe was becoming weaker and weaker as time passed. The attacks on it never stopped. Heavens did nothing to get rid of the Ancient Devils, but it was doing everything to get rid of the Second Universe. Greed had blinded its eyes. It was unable to see the most dangerous beings that could even threaten the Heavens itself, it only focused on destroying the Second Universe and stealing its Source.
According to the Heavens, as long as it could steal the Source of the Second Universe and absorb it, its strength will increase rapidly and it would expand. At that time, it can focus on doing different things such as getting rid of the Ancient Devils. However, it gave the priority to stealing the Source of the Second Universe. Getting rid of the Ancient Devils was secondary. In its eyes, all the powerful people under it including the people of Primordial Race, Nine Ancestral Dragons, and Queen were helping it to kill or seal the Ancient Devils. It is enough for now. And no matter how powerful these Ancient Devils are, they can't threaten it.
However, what Heavens didn't even notice was, how did these Ancient Devils appear?
If it would have thought deeply, it would have been shocked to find out that Ancient Devils were not born in the Heavens, they came from somewhere outside the Heavens.
Although Heavens didn't notice, Ye Xiao did. He was like a spectator, watching every single scene unfolding. Many times, he wanted to interfere, only to realize he couldn't. Everything happened in the past and what he was witnessing was just what has already happened. He couldn't interfere nor could he change anything. He could only observe.
Ye Xiao noticed the first appearance of the Ancient Devil. It was when the Heavens opened a small crack on its membrane to send Queen, Nine Ancestral Dragons, and people of the Primordial Race to the Second Universe by forcefully opening the crack on the membrane of the Second Universe.
At that time, no one noticed a small streak of black light flashing and silently entering the Heavens. That black light was the first Ancient Devil. It could also be said to be the ancestor of all the Ancient Devils that later appeared. The other Ancient Devils appeared after the first Ancient Devil divided its foggy body into several parts. The more parts the body is divided, the more Ancient Devils appeared.
Ye Xiao didn't know what is going on with these Ancient Devils, but he do was shocked when he found out that these Ancient Devils are not originally from the Heavens.
Well, the battle continued. The latter half of the Primordial Era was filled with battles everywhere. The first few thousand years were the battle against the Primordial Race, Nine Ancestral Dragons, and Queen. Other millions of years were battle against the Ancient Devils. And the last few hundreds of thousands of years were filled with the battle that resulted in the shattering of Heavens into three parts, the Lower Realm, the Upper Realm, and the Divine Realm.
Ye Xiao saw the fight against the Ancient Devils continuing for millions of years. In these millions of years, almost all the Ancient Devils were either killed by the Nine Hell Serenity Dragon, or sealed by other dragons and people from different races. Very few Ancient Devils were left who either went hiding or started dividing their own bodies to increase their number in order to cause another few small waves of destruction and commotion. However, the last result was still the same. They were either killed or sealed.
Talking about the Ancient Devils dividing their bodies to increase their numbers, Ye Xiao also noticed as long as they divide their bodies, they would weaken by many times. For example, an Ancient Devil with the strength of an Ancient God divided its body into several parts, causing new Ancient Devils to appear with their free will to think and do things.
At that time, the strength of the previous Ancient Devil will regress by many times. It would be left with the strength of a Ruler or Exalted Ruler, not even a God. As for the other Ancient Devils, their strength would be even lower.
However, after killing some people, devouring their soul, blood, and life essence, and causing destruction, their strength would increase rapidly. So, it was not difficult for them to increase their strength once again. All it needed was some time and the death of many people.
After millions of years of fighting against the Ancient Devils, the Primordial Race, Nine Ancestral Dragons, and Queen were suddenly attacked by the people from the Ancient Race and other races. Only then did they realize that they were once again betrayed by the Heavens. Heavens only wanted to use their hands to kill and seal the Ancient Devils. Now that the job is done, there was no need for them to wait, they directly attacked.
It was also the time when they realized an existence has already appeared that could threaten the Ancestral Dragons easily. This existence was none other than the Celestial Sword Emperor.
The Ancestral Dragons also realized that they have seen and even fought along with the Celestial Sword Emperor against the Ancient Devils. But at that time, the Celestial Sword Emperor didn't do anything to harm them.
Celestial Sword Emperor came from the Ancient Race, and the first time he made his move against the Ancestral Dragons, he almost killed the Blood Slaughter Abyssal Dragon.
It was at that time that everyone realized the threat of the Celestial Sword Emperor. His one sword was like thousands of sharp swords, cutting everything in its way like tofu. His comprehension of Sword Way has reached a terrifyingly higher level, where it could even slice through a few Profound Meanings of others and shatter them easily.