"Is this the upgrade function? It's really powerful."

Feeling his own changes, Song Qingyouxin exclaimed.

If it weren't for the system's upgrade function, every time he upgraded his cultivation level, the number of Daoyan points he spent would be ten times the previous one, and he would have the intention to directly upgrade his level.

Of course, he could only think about it, because the Daoyan points he had at this moment were only enough for him to improve four levels.

In other words, after using these four opportunities for improvement, he could only break through from the Four Poles Secret Realm to the Dragon Transformation Secret Realm.

"It would be a bit too much to use the upgrade function to improve the small realm. It would be better to wait until I complete the cultivation of the Four Poles Secret Realm and make a breakthrough!"

Song Qing shook his head, his eyes fell on Duan De, and he thought to himself: "I just don't know what opportunity will Duan De get this time."

...

Speaking of which, after Duan De was immersed in the world of the book, he began to explore the Luotian Star Domain with Wang Lin.

This Luotian Star Domain is located under the Thunder Immortal Realm, which is very different from the Alliance Star Domain. There are not many powerful cultivation sects here, but only cultivation families.

These so-called cultivation families have a very long history. Many of their ancestors were immortals in the fairy world, and they had relatively complete immortal world inheritances, but they were somewhat like these ancient families of Beidou.

First, Ran Yun, the power of the ancient demon, the sword destroys the illusion family, Wang Lin's son, the thunder immortal messenger, Duobao Tianlang, the wrath of the moon, the body collapses, the thunder immortal world...

Such a wonderful trip to another world made Duan De completely addicted and unable to extricate himself.

"Watching the Moon's wrath is like an ancient god's finger. I'm afraid the ancient sages are not as good as the strength of the Moon!"

"The Immortal Slave Seal is so terrifying. Once it is branded, even the descendants of future generations will be enslaved."

"The ancient god is really powerful. An eight-star ancient god needs to gather the power of most of the thunder fairy world to kill it."

"Xiaoyaozi Immortal King records that 'The Immortal Emperor was crazy and died in the sky'. What did they see that shouldn't exist?"

Seeing this, Duan De felt a sense of shock from the heart.

The Immortal Emperor has vast magical powers, boundless magic power, and endless life. He is the highest existence in the fairy world. There is only one person in each fairy world. However, such a powerful person died in a mad manner because he saw what should not exist.

As a "archaeological" person, Duan De's favorite thing is to excavate ancient history, so he was really curious about why the immortal emperor died in the sky and how the immortal emperors in other immortal worlds died?

However, no one could tell him about this problem, because the immortal king who saw this scene had already brought this secret with him, and he passed away for countless years.

With his own questions, Duan De followed Wang Lin and continued to explore in the Thunder Immortal Realm.

Finally, he met the second immortal who was still alive in the world - the Immortal Realm of Thunder, the Immortal Lord Qingshui.

"Wuliang Tianzun, is this the Immortal Lord or the Demon Lord? This is too terrible!"

Duan De screamed strangely.

The world in the book created by this system is extremely real, and although Duan De is a bystander, he still can't help but bring himself in.

It can be said that the immortal king Qingshui was devouring the monks in front of him. His ruthless eyes made his heart pound.

Finally, Yan Leizi appeared and used Wang Lin's body to fight Qingshui. Although he was defeated, he led him away.

"Chaoxiantai? Ancient Immortal Realm? The place where ancient immortals are in the lower realm?"

Originally Duan De thought that the fairy world was the strongest and the Immortal Emperor was the peak of this world, but he never expected that there would be an ancient fairy world above the four great fairy worlds of wind, rain, thunder and lightning.

"Why did the Immortal Realm collapse? Is it caused by the Immortal Realm in the Ancient Immortal Realm?"

One by one, one bizarre mysteries made Duan De think hard, but he just let him break his head, but he couldn't think of anything.

Even Duan De was unable to immerse himself in the world in the book because he focused on thinking.

Song Qing blinked, and found that Duan De had independently left the world in the book without running out of his study time.

"Is it because the systematic books are not attractive enough? It shouldn't be."

Thinking of this, Song Qing immediately coughed dryly and asked, "Well, Master Duan, why did you come out of the world in the book?"

Duan De sighed and said, "Yeah! Isn't this too many mysteries in the book? I don't have the time to read the book if I think about it."

As he said that, he suddenly remembered something, looked at Song Qing with a keen look, and asked: "Senior, can you tell me why the Immortal Emperor Bai Fan died in the sky? What did he and Xiaoyaozi see? Why did the four great immortal worlds break? Is it the ancient god attacking? What role did the ancient immortal realm play in this?"

Listening to the pile of questions raised by Duan Debalabala, Song Qing shook his head and said, "You should find the answers to these questions yourself. If I tell you directly, it will be much less fun."

"That's right!"

Duan De scratched his head and nodded in agreement.

Sometimes, exploring by yourself and gradually revealing the answer will be more fun than telling others directly.

Duan De was really curious about the plot behind him, so he said to Song Qing: "Senior, I will continue reading!"

After saying that, he continued to read the books.

Soon, Duan De was immersed in his heart and came to the world in the book again.

This time, he finally knew what Yan Leizi was leading Qingshui to Chaoxiantai to do.

"Hiss! This Flame Thunder Zi is worthy of being the top old monster in Luotian Star Domain. He actually formed a formation with forty-nine pieces of the Thunder Immortal Realm, and wanted to refine half of the Thunder Immortal Realm into a supreme magic weapon. This kind of courage!"

Duan De was shocked at this moment and was completely stunned.

The person who can think of this method is definitely a madman who can think of this method with the soul of the immortal king and the immortal king.

However, Yan Leizi succeeded.

"I just don't know, how much is this magic weapon compared to the Extreme Emperor's Soldier?"

Duan De's heart was secretly compared.

He has not yet recovered his memories of his previous life, so he naturally does not understand the true power of the Jidao Emperor's Soldier. Although this magic weapon is strong, it is still slightly weaker than the Jidao Emperor's Soldier.

Time passes slowly.

Duan De learned a lot about what happened before the collapse of the fairy world from the conversation between Yan Leizi and Qingshui Narcissus.

However, I still don’t know why the four great immortal worlds collapsed.

I only know that on the eve of the collapse of the four great immortal worlds, all the immortal kings suddenly went crazy. After the collapse of the rain immortal world, a file containing the aura of the ancient immortal world fell from the sky and was not opened.

"Maybe, we have to wait to go to the other two immortal worlds and break through the headquarters of the Cultivation Alliance to understand the truth of that year!"

Duan De was really disappointed that he failed to get what he wanted to know.

However, the subsequent story development made him immerse himself in again.
Chapter completed!