Mu Chen was shocked, and his mind hurriedly sneaked into the Liuhe World, only to see that the entire Liuhe World was undergoing earth-shaking changes.

The whole world, in the frenzied expansion, outside the world, faintly contains a void force.

This is a manifestation of complete detachment from the shackles of the earth, and with the birth of that void force, it shows that the Liuhe world has completely become one.

"Mu Chen, tell you good news, your world has finally taken shape!" The voice of the system suddenly sounded in Mu Chen's mind, and he said with a smile.

"I know!"

Mu Chen nodded, he was not blind.

"There is also good news, now is the best time to merge the world, originally opening up the world is a unique manifestation of God, but because this great array has already had a preliminary fusion with you, now as long as you want, you can merge this world into your natal world, which is equivalent to the world you have opened up yourself. In the future, the stronger your power, the stronger the world will be, and the stronger the world becomes, and the stronger you will become. Between you and the Liuhe World, the same body, one is prosperous, the other is lost, and now you are willing to completely accommodate the Liuhe World!"

The system hurriedly said.

"What, complete fusion?"

Mu Chen was stunned for a moment, frowned and asked.

"That's right, the biggest benefit to you from fusing the Liuhe World is that you don't even need to cultivate in the future, as long as you continue to consolidate the Liuhe World, you can continuously enhance your cultivation. For example, at this moment, once you contain the Liuhe World, your cultivation will be instantly promoted to the peak realm of the Heavenly Immortals because of the independence of the Liuhe World, which is the power that the world will give back to you!"

The system said in a deep voice.

"Doesn't that mean ......" Mu Chen was shocked in his heart, and hurriedly said: "Then what else do you say, immediately fuse!"

He wasn't stupid, and he understood the meaning of the system in an instant.

Once he integrates into the Liuhe world, he will even save the world of cultivation in the future, as long as he continuously strengthens the world, not to mention the so-called heavenly immortals, even if he achieves the god position, there will be no problem for him.

"Okay!"

got Mu Chen's definite answer, and the system immediately responded.

The next moment, a mysterious power poured out of the system, instantly linking the Liuhe World with Mu Chen.

Mu Chen's flesh and blood, at this moment, seemed to be completely integrated into the Liuhe world.

This is different from the previous fusion, the previous fusion was just to integrate the Liuhe World into his body, but this time, it was a fusion of flesh and blood.

With his bloodline completely connected to the Liuhe World, Mu Chen clearly felt that the Liuhe World at this moment was simply equivalent to his own flesh and blood cells.

He can make the world prosperous with one thought, and he can also collapse the world with one thought.

His consciousness invaded the Liuhe World, and in just a few moments, the entire Liuhe World had already undergone earth-shaking changes, expanding dozens of times, and the area of the earth was even larger.

And the decadent atmosphere that permeated the entire Liuhe world before was swept away in an instant, and countless flowers and trees were thriving.

One after another, powerful spiritual power awakened in the world, making the entire Liuhe world full of rich spiritual power.

"What's going on, my cultivation has actually improved!"

"I! My strength doesn't have any bottlenecks, and it's constantly improving!"

"I'm the same, what's wrong with this world!"

At this moment, in the Liuhe World, exclamations continued to sound one after another, instantly attracting Mu Chen's attention.

Under Mu Chen's gaze, I saw that in the Liuhe World, everyone such as the Dark Elves, Nature Elves, Medusa, Blood Clan, and Dwarf Clan, at this moment, cultivation was like a rocket, rising slowly.

Among them, there are many people's cultivation, and they have directly jumped to the realm of saints.

Seeing this scene, Rao is Mu Chen couldn't help but be dumbfounded, and hurriedly said, "System, what's going on?"

The voice of the system came, and he said with a smile: "Don't make a fuss, although your Liuhe World is completely born, there are no living beings in it, but these people trapped in it have become the first batch of living beings in the Liuhe World." To a certain extent, they are the existence favored by the gods, and as long as they live in it, they will continue to obtain the luck of the Liuhe World!"

"Such the first batch of beings, if they were born at the beginning of the divine realm, it can be said that they are gods, but compared with the current Liuhe world and the divine realm, the distance is not ordinarily far, so they can only be regarded as the patrons of the gods, and you, as the lord of the Liuhe world, are the unique gods in their destiny. From now on, they can be considered to be completely integrated into this world!"

Mu Chen was secretly surprised, he didn't expect that after the Liuhe World was upgraded, it would be able to cause so many chain effects.

At this moment, the Innate Mixed Yuan Pill that he had just taken had also taken effect, and his five great Yuan Gods instantly recovered their spiritual power.

Just when he was amazed by the change in the world of Liuhe, suddenly, a strong crisis struck.

"Not good!"

Mu Chen's muscles were spasming, it was an instinctive fear.

The system also thought of something, and hurriedly shouted: "Mu Chen, leave the refining workshop quickly and prepare for the tribulation!"

At this moment, Mu Chen, with the upgrading of the Liuhe World, he also lost the bottleneck of improving his cultivation, and his cultivation was promoted to the peak realm of heavenly immortals.

You must know that as long as you become an immortal, every time you ascend to a realm, it will cause a heavenly tribulation.

If you are an ordinary person, when you achieve the cultivation of the Earth Immortals, you will only face the first three heavenly tribulations in the Nine Heavenly Thunders. And when you achieve the Heavenly Immortals, you will face the middle and triple heavenly tribulations in the Nine Heavenly Thunders.

When you achieve Xuan Immortal, you will face the last three heavenly tribulations in the Nine Heavenly Thunders, which are the Nine Heavenly Tribulations.

Mu Chen suddenly achieved the position of Heavenly Immortal at this moment, and the Heavenly Tribulation naturally would not be polite to him.

Moreover, when he achieved the Earth Immortal, he had already endured all the tribulations of the Nine Heavenly Thunders one after another, and even the Heavenly Wind Tribulation in the Nine Tribulations of Annihilation had resisted stubbornly. At this moment, his cultivation has reached the peak of the Heavenly Immortal, and what he will attract will be the more powerful Heavenly Tribulation in the Nine Tribulations of Annihilation, so Mu Chen did not dare to survive in this refining workshop at all, and even he could not continue to stay in the Heavenly Palace.

Otherwise, when the Heavenly Tribulation comes, even the Heavenly Palace will definitely suffer heavy losses.

"Childe, what's going on?"

Seeing Mu Chen get up suddenly, Fairy Biluo hurriedly shouted with an anxious look on his face.

"Don't ask, stand here and protect the sword embryo!"

Mu Chen hurriedly explained, turned into a streamer, and rushed out of the refining workshop directly.

"Whew!"

After leaving the refining workshop, Mu Chen immediately turned into a streamer and rose into the sky.

And the moment he appeared, the entire heaven and earth became completely violent, and the scorching temperature scorched the earth, and the temperature of the entire heaven and earth seemed to rise more than a hundred times in an instant.

"What's going on, it's such a strong incineration force!"

The people of the entire refining workshop were instantly alarmed, and countless figures rushed out of the refining workshop one after another.

Soon, even the entire Heavenly Palace was shocked.

Someone saw a figure in the sky, and where the figure passed, it was like a drought passing by, and countless flowers and plants instantly withered and turned into ashes.

For a while, this figure immediately attracted countless onlookers and chased away.

However, this violent temperature did not last long, gradually, the temperature began to rise again, the whole world was completely boiling, hundreds of degrees of high temperature shrouded in dust at any time, and the place passed through was simply a sea of fire.

And as the temperature rose, a vast heavenly power descended even more wildly, and even the clouds in the sky turned into fiery red.

"It's not good, this is the Heavenly Fire Tribulation, someone is crossing the Tribulation!"

In the Heavenly Palace, some Golden Immortal masters were immediately awakened, and one by one the Golden Immortal powerhouses appeared one after another, rushing to the place where the Heavenly Fire Tribulation came.

Especially in the Elder Pavilion, dozens of Golden Immortal Masters, their divine senses spread out, and they immediately locked Mu Chen, and they couldn't help but be shocked.

"Heavenly Immortal Tribulation, Attracting Heavenly Fire Tribulation?"

Someone exclaimed in surprise and hurriedly chased after him.

In the Heavenly Maiden Palace, the Ten Thousand Dao Heavenly Maidens frowned slightly, and the powerful divine sense also locked Mu Chen in it.

On the side, Ruyi hurriedly said: "Heavenly Maiden, Mu Chen's son seems to have broken through, and his cultivation has jumped to the peak of the Heavenly Immortal, and it seems that he is crossing the catastrophe!"

Wandao Heavenly Maiden recalled the scene of Mu Chen's tribulation in Daoyong City before, and couldn't help but shake her head, and said: "What kind of demon is this kid, the Earth Immortal Realm ushered in the Nine Thunder Tribulations and bombarded wildly, and even the Heavenly Wind Tribulation was triggered, and now that he has just achieved the Heavenly Immortal, he has also ushered in the Heavenly Fire Tribulation, which is planning to go against the sky!"

As she spoke, she moved under her feet, rose to the sky, and said, "Follow me to have a look!"

Hearing this, Ruyi did not hesitate at all, and immediately chased after him.

At this moment, Mu Chen was desperately rushing to the outside of the Heavenly Palace, and after half an hour, he finally left the range of the Heavenly Palace and came to the west of the Heavenly Palace, three thousand miles away.

He still wanted to continue to hurry, but suddenly a flame rose all over his body, and the violent temperature instantly made his skin shrink together, and even his bones instantly burned red, almost collapsing.

The flame came so fast that it didn't give him any time to react. And his immortal power has no power to block this flame at all, this flame seems to come from outside the sky, and it seems to come from his body, making him unguardable.

"Mu Chen, there is no time, if you resist, you will definitely not be able to stop this fire tribulation, now take a gamble!" The voice of the system sounded from Mu Chen's mind, and he hurriedly shouted.

"How to bet?" At this moment, Mu Chen, because of his panic, also seemed to be a little masterless, and he only thought about improving his cultivation before, but he forgot how to resist the heavenly calamity.

At this moment, the catastrophe has come, and he has no way at all.

Before, whether it was facing the Heavenly Wind Tribulation or the Nine Heavenly Thunder, he had cultivated the Wind Yuan Shen and the Thunder Yuan Shen, as long as he had the corresponding exercises, he would be able to take these two powers as his own.

And now, his five great Xuan Babies have already turned into the Thunder Primordial God, the Wind Primordial God, the Light Primordial God, the Dark Primordial Spirit, and the Gengjin Primordial Spirit.

He didn't have any extra Xuan Ying to cultivate other primordial gods, and at this moment, in the face of the power of this heavenly fire, he really had no way at all.

"Count me on what I owe you, and give you another Innate Yuan Spirit, and you quickly condense it into a Heavenly Fire Yuan Spirit. I hope you can survive this catastrophe!" the system said helplessly.

As he spoke, a stream of information immediately poured into Mu Chen's mind.

Mu Chen glanced at it slightly, and immediately memorized the content of this information in the depths of his mind.

This is an exercise called the Heavenly Fire Decision, which is the same as the "Nine Heavenly Wind Decision" and the "Thunder God Jue" that were systematically taught to him before.

"Nine Heavenly Wind Decision" and "Thunder God Formula" are dedicated to overcoming the power of heavenly thunder and wind, while this "Heavenly Fire Decision" is dedicated to overcoming the power of all flames.