Having decided this and telling his family that he would be gone, Zhang Yi left the world of mental energy and used the spatial coordinates he read in the demons' memories that he had used the soul search technique.

Zhang Yi felt a little resistance when he tried to invade the demon universe because going to other universes was only possible using the Dao from space, if Zhang Yi wanted to send an army to the demon universe he would have to wait just like the demon leader had to do when it was easier to go to another universe.

But Zhang Yi would go alone and he was better at using space laws than Oz'Gorath because besides the space Dao he had his special eyes, so he was able to easily enter the universe of demons and Oz'Gorath couldn't even know that Zhang Yi was there.

Zhang Yi used the laws of light and the laws of darkness and became invisible, the demons had no mental energy and with the Dao of the laws of darkness and light Zhang Yi would never be discovered, the first thing he did was to calm the anger that he always felt when he remembered the demons.

Zhang Yi stayed in that place that he arrived in the demon world and first used the laws of time to stop time for him, it meant that the whole world was stopped and only Zhang Yi could see what was going on.

But he also couldn't move or make any kind of attack, that was the restriction of this Dao technique of time, but for what Zhang Yi wanted to do this technique was perfect, he used the Dao from space to analyze all the places of this universe.

This was something that Zhang Yi had done before the war against demons and so he can know where the demons were after they invaded his universe, but it was something that naturally also took a long time.

Zhang Yi took a few months to analyze the whole world of demons because unlike his world Zhang Yi had to know in detail the places where there were smaller worlds and other demons and in his universe, Zhang Yi had to know how far the laws of space went in all the places.

After this analysis Zhang Yi saw what he already knew, the only race that existed was the demons and they dominated all worlds and other worlds they destroyed and Zhang Yi did not know if there were ever humans in this world.

It was really a strange universe that still had nature that existed even in worlds that had no fertile land and had few rivers, so Zhang Yi imagined beside the children there was no one who normally drank water or even ate.

After all, warriors could only live using spiritual energy when they became very strong, even the weakest warriors in the Houtian and Xiantian realm could already eat and drink less with the help of spiritual energy.Zhang Yi understood from what he saw in the demons' memories that it was because even though their world suffered various celestial tribulations because of the evil they caused, the tribulation seemed like it didn't want the extermination of the demons and only caused damage in places where it didn't have the rest of nature.

Spiritual energy did not depend on nature to exist, and the demon worlds were rich in spiritual energy and had many unexplored high-level spiritual stone mines because Oz'Gorath did not allow it, fine-tuning spiritual energy was like the food of demons.

Zhang Yi didn't even know if he would be able to live without eating and drinking water that was the joys he had always had in his life for more than 5,000 years, and many demons spent their whole lives without eating many delicious things.

Even so, Zhang Yi still didn't feel sorry for the demons because it was their fault that this was happening in their universe, after mapping the entire universe of demons Zhang Yi saw where Oz'Gorath was.

This was for sure the place he had to attack first if he killed the demon leader he wouldn't find anyone who was above the seventh level of the Eternal Realm if it happened to his defense and his clones it was just a matter of time until the entire universe is destroyed.

Even more, because Zhang Yi was guaranteed not to have to face many demons after he killed the demon leader, so Zhang Yi did not want to waste time and invaded the place where Oz'Gorath was.

If Oz'Gorath had realized that Zhang Yi was attacking he could create a restricted space and that would prevent him from being attacked by surprise, but he was used to living in a universe where he knew he had no enemies and had no reason to protect himself that much.

Zhang Yi had already realized using his mental energy that Oz'Gorath was indeed at the ninth level of the Eternal Realm if that were so Zhang Yi was no longer afraid of any unforeseen events because with the ninth level of the fourteenth realm of mental energy and refinement Zhang Yi's body was naturally stronger than any demon or dragon.

That was why humans were the most feared species in the universe, it was because they had the ability to learn and strengthen each other that other races didn't have, even elves who were almost like humans couldn't use mental energy and body refinement.

[WHO ARE YOU!!! How can you invade my world without me noticing!!!]

Oz'Gorath was in a panic because he realized what it meant that someone managed to appear in front of him without him noticing, was that someone else had the ninth level of the Eternal Realm and the Dao from space too, so he was an opponent who could be dangerous for his life."You should know who I am, Oz'Gorath, you just sent an army into my universe intending to destroy everything after you put spies there."

"YOU ARE ZHANG YI!!! I had suspected it was you when I heard about what you managed to do with less than a thousand years old, so you were responsible for the destruction of my army."

"I never expected that after what I did to live in millions of years it would be destroyed so, in spite of all my efforts, I didn't expect that this prophecy would really come true."

"I don't know what prophecy you're talking about Oz'Gorath, but because you sent your army to attack my universe and caused billions of deaths, I came here to kill you and destroy this doomed world of demons."

"HAHAHAHAHAHA!!! Do not think that I will surrender to my destiny so easily, you were in the Divine Realm the last time I heard, it is impossible that you would have been so strong in less than 4 thousand years even if you had used the laws of time."

Zhang Yi realized that Oz'Gorath went crazy after seeing him, Zhang Yi trained so long for that moment, but there would be no epic struggle with the powers he saw that Oz'Gorath had, Zhang Yi, used his sacred domain and so in a matter of seconds all the demons that were below the sixth level of the Eternal Realm died instantly.

So a world with billions of demons that had hundreds of demons in the Eternal Realm disappeared like that, less than 100 demons survived after Zhang Yi used his sacred domain, after all, Zhang Yi was on the ninth level of the Eternal Realm and had the Dao in 14 laws different being one of them the Dao do chaos.

The demons who were at the sixth and seventh levels of the Eternal Realm survived because of the demons' naturally strong body, but even they were very weakened, and only Oz'Gorath was not seriously injured after the sacred domain.

But he could feel that he had little more than 50 percent of the maximum strength he normally had, seeing this as the last hopes he might have that Zhang Yi was still weak have disappeared.

He had lived for millions of years and only then did he achieve the Dao in 5 different laws, the Dao of space, the Dao of negative energy, the Dao of the massacre, the Dao of darkness and the Dao of destruction which was something like Zhang Yi had.magic

But he realized that Zhang Yi, who was less than 6,000 years old, had managed to become much stronger than him and had learned several techniques that made him even stronger, and Zhang Yi had used only one of the offensive techniques that he knew.

Zhang Yi had not even thought of having mercy on Oz'Gorath and soon used his dragon form and using all of his attack techniques used Dragon's Breath on Oz'Gorath, realizing the strength of that attack Oz'Gorath realized that it was no use if defend and that even the planet on which demons have always lived would be destroyed in that attack.

Just as Oz'Gorath hoped Zhang Yi killed him instantly in this blow and also killed all the demons that survived his sacred domain, this attack also destroyed this planet and the strongest demons that were in the smaller worlds realized that something had happened where Oz'Gorath was.

Zhang Yi even used a technique to preserve a piece of Oz'Gorath's soul for a few seconds just so that he could use the soul search technique to read all of Oz'Gorath's memories and try to discover some things that could cause fear in Oz'Gorath and could be a risk to his universe.

Zhang Yi read all of Oz'Gorath's memories and was shocked by what he saw, fortunately, his mental energy allowed Zhang Yi to stand firm and not pass out from the mental blow he suffered.