There was no end to the slaughter.
The two Dragon Emperors would definitely want to intervene to stop such a desperate situation, but the purpose of these two demon lords was to restrain them. In a situation where their strength was equal, the two Dragon Emperors could do nothing.
They could only fight to the death.
Blood rained down from the ground. The twenty-million-strong demon army surged forward like a tidal wave, shattering mountains and rivers, reversing rivers. Cracks appeared on the vast ground, and countless pieces of land crumbled and split apart, turning into dust that surged into the starry sky, far away from the Eternal God Realm.
The Chaos Galaxy had been carved out from a battle back then, but the intensity of the battle back then had been far greater than today.
Long Chen hovered in the air, and as far as his eyes could see, there were demonic beasts everywhere. They were as dense as insects, crawling all over the ground. Blood could be seen everywhere, and corpses with unclear appearances could be seen everywhere.
That berserk roar lingered in the ears.
All Long Chen knew was that they could not be allowed to charge into the Dragon God Realm.
All the humans were already using their lives to defend.
Although they could still hold out for now, there would be a time when everyone was dead. Some of the elites of Massacre City were here. If they died, even if the humans managed to hold out, they would suffer heavy losses.
"Long Chen."
In his daze, he heard the Violent Dragon Emperor's call. He had transformed into a mystical dragon and was fighting fiercely with the Nine Phoenixes in the sky.
He was reminding himself that he had to stop all this.
But how could he stop it?
He could only continue killing. Only when the other side was dead would they stop.
As for the demon experts, Long Chen chose to wake them up.
"What are you waiting for? Hurry up and stop it."
At this time, everyone was going crazy. Long Chen's figure was like a meat grinder. Everywhere he went, the demons were annihilated. The number of people he had killed today had far exceeded what he could bear.
But this tragedy could not be stopped.
Right now, a large number of demons had already charged into the center, and the defensive line had collapsed.
"Kill."
However, the Human Race martial artists did not give up. Although they were facing a group of opponents who were not afraid of death, their homes were behind them. They were the old, the weak, the women, the children, and their relatives and friends. No one could bear to see them die, so they could only fight desperately.
In this attack, there were four powerhouses on the same level as the Thunder Qilin. They were hidden in the midst of the monster beasts, preparing to directly leap into the midst of the human army and start a massacre. And indeed, they did so. Long Chen had his eyes on them. From the beginning until now, he had already awakened three martial artists on this level.
One of them was almost killed by Long Chen.
The last one was intercepted by Long Chen.
In fact, they were the scariest. Only a warrior at the level of the Dragon Emperor could punish them, but the Dragon Emperor did not have the time to chase after them.
Once they entered, they would be able to slaughter hundreds of thousands to millions of people just by getting close to an ancient city of Divine Descendants.
In fact, there were already several ancient cities of Divine Descendants that had been massacred along the defensive line near the demon race.
They only wanted the five Dragon Balls. Before they got the five Dragon Balls, the Primeval Troll would not let them have peace, and this terrifying invasion would be endless.
After stopping the last big trouble in front of him, Long Chen did not have time to waste on them. He directly transformed into the Sword of Judgment, and the huge sword shone brightly. The other party resisted like crazy, but under the will of the Divine Dao Heart Refining Dragon, they were still broken. Long Chen had used up more than half of his strength to finally deal with the four top ones.
Of course, it would be even more difficult to kill them.
"How could this be?"
Every demon that escaped the control of the Primeval Troll was in great pain.
"There's no time. Save as many as you can."
They could imprison other demons and return to the Demon Immortal Region, but in the end, what they could do was still a drop in the bucket.
However, with the help of Long Chen, the invasion was finally contained. Although the casualties were still increasing, the situation was at least developing in a good direction.
Most of the humans were elites, so they had the upper hand in this confrontation. However, at least millions of demons had rushed into the Dragon Immortal Region, and there were many powerhouses among them.
These demons could not pursue them, because once they entered, they immediately scattered.
In the sky, the Violent Blood Dragon Emperor finally heaved a sigh of relief. Long Chen did not disappoint him. He had withstood the huge pressure and completed the mission. This time, although he had slaughtered a large number of demons, he had also saved countless of his own people.
Perhaps he would blame himself, but history would prove that he was not guilty.
Their blood was boiling, and every human's eyes were bloodshot. The wills of the Dragon Martial Artists were strong, and they formed a square formation, blocking the beast-like charge of the demons.
However, the biggest problem was that even if they were blocked, they would not retreat, but continue to fight with all their might.
There were at least five million demons lying in pools of blood. It was unknown whether they were dead or alive. From where Long Chen stood, he could see an endless sea of blood and corpses at least a thousand miles in front of him.
Seeing all this, Long Chen felt as though a drum was beating in his heart. That was his violently beating heart. He could not help but tremble, and he could not suppress the anger and hatred in his heart. He was completely enraged, so angry that he could hardly breathe. He did not hate the demons, but the Primeval Troll who had caused so many casualties.
It was them who had caused so many deaths.
Long Chen found it hard to breathe. His hands, which were covered with golden blades, had almost pierced into his flesh.
In his chest, he felt as though ten thousand horses were galloping.
The strong shouldered the responsibility of protection. He had great responsibility, but now he was powerless. He could not control the battlefield, and could only go with the flow.
"Father, what should I do?"
This was his home, a place that he had once protected, and now it was his.
There was no answer to this question at all.
Even if they were trapped, the demons continued to break out of the encirclement. They were not afraid of death. In the end, there would only be more and more corpses, and they would never have the thought of retreating.
But at least they had been contained. Perhaps this was hope.
Long Chen was still harvesting. No one could catch up with the speed of his Divine Prison of Sabers and Swords, but this was all he could do. As for those demons who had woken up, they could not be of much help.
Long Chen was waiting.
Now that things had come to this, it seemed that he had to use the last method that the 15 Dragon Emperors had discussed. This method would definitely have a price to pay.
But at this moment, a new crisis arrived.
"I have not been to this place for a long time. I really miss it."
After the 20 million demon army, something new appeared. The voice that Long Chen heard just now was all too familiar. It was the voice of the Sea God Emperor.
As far as the eye could see, the warriors of the Sea Race had arrived. Moreover, the Sea God Emperor had personally led them here. It was likely that the other Sea Emperors were not idle either. They might even be nearby.
Although the number of the Sea Race was not high, the Sea God Emperor had brought at least five million of them.
If these Sea Race attacked, the line of defense that Long Chen had set up would definitely disappear completely. Everyone guarding here might have no other choice but to die.
The tall figure of the Sea God Emperor appeared in front of all the giant sea beasts.
His pale face, sinister smile, and dark blood-red eyes were synonymous with terror. And behind him, all the Sea Race and the Sea Race roared and advanced together.
"Everyone, listen up. Those above the Seven-Star Reincarnation Tribulation Realm, bring everyone else into their respective God Kingdoms. We will retreat to the five great dragon cities. Long Chen, you are responsible for protecting them."
The appearance of the Sea God Emperor and the Sea Race army was an accident, a terrifying accident.
With the power of the Sea God Emperor, even if he came himself, he would be able to break this stalemate.
Therefore, the Violent Blood Dragon Emperor directly announced the final decision.
It was actually to retreat to the five great dragon cities.
This meant that the fifteen Dragon Emperors would have to give up almost all the land except the five great dragon cities.
Then, other than these warriors, how would they deal with the others, such as the ancient cities of the 72 Divine Descendants?
"Long Chen, don't worry. When the battle began, we ordered everyone in the territory of the ancient cities of the Divine Descendants to retreat to their respective god cities. Then, the strongest warriors in the god cities will bring the entire human race into the God Kingdoms. Now, all the god cities are ready. Now that the order has been issued, almost all the people of the Dragon God Domain are gathering in the five great dragon cities."
This was the most helpless thing they had to do.
They gathered all the human race in the five great dragon cities through their God Kingdoms, forming the final line of defense.
The human race had the advantage of having a God Kingdom. The God Kingdom of a warrior above the Reincarnation Tribulation Realm could withstand tens of thousands of people. Those at the Five-Element Reincarnation Tribulation Realm could withstand even more. For example, Long Chen could withstand tens of millions of people without a problem.
There were also billions of humans, but with this method, they could still maintain it for a short period of time. At least one or two years should not be a problem.
It had to be said that this was truly a crazy move. They actually gave up all the land of the Dragon God Domain just to protect the lives of everyone.
However, Long Chen knew that this was the most correct move. Only by doing so could they maintain the bloodline of the human race and reduce casualties. They could also concentrate the defense in a small area, which was more suitable for defense. The other three races would not be able to display their advantage in numbers.
However, this was destined to be a huge project.
Fortunately, the fifteen Dragon Emperors were already prepared. When they finally despaired and realized that this kind of defense would not solve the problem, they decisively chose to retreat. They retreated to the very end, giving up such a vast and fertile land that they had never lost.
Although there was a limit to how many people each person could hide in their God Kingdom, there were many powerhouses, and they had deployed early, so it should not be a problem.
In fact, if there were two people in a person's God Kingdom, including himself, it would be three. Then, if he entered someone else's God Kingdom, it would be equivalent to three people.
Therefore, it was impossible to hide people.
This did not conform to the rules of the world.