The system gives me immortality, and I will eventually become invincible while I’m alive.

On the way to the cave, Chen Xun and Dahei Niu were transmitting messages.

"Old Niu, what do you think of the Xuegu formation?"

"Moo~"

"After research, I am sure of the time."

"Moo~"

"understood."

Chen Xun smiled, and a few crystal snowflakes from the sky slowly fell on him.

His eyes gradually became bottomless, exuding a subtle sharpness, like a blue pool, as if nothing in the world could stir up a ripple in his eyes.

The big black cow glanced at Chen Xun quietly, with a glimmer of light in his eyes, and his mouth gradually rose.

Jiang Xuechen was walking in front, but for some reason his heart moved and he suddenly turned to look at Chen Xun and Da Hei Niu.

They still smiled brightly and joked about each other from time to time, as if they had no intentions and were harmless to humans and animals...

"Two seniors, this cave has just been opened not long ago, and the spirit gathering formation has been set up, specially prepared for you two."

Jiang Xuechen's smile was a little stiff. She still believed in the hexagram that night, "If you need anything for cultivation, Xuechen can do it for you."

"Okay." Chen Xun nodded and smiled.

"Moo~" The big black cow raised its hind hooves cheerfully, and a burst of white snow was thrown up high.

Jiang Xuechen immediately turned around and started to move forward again, but her heart became more and more worried. These two were by no means as simple as they seemed on the surface.

After a stick of incense.

Rumble!

Listening to the waterfall in the Snow Valley that seemed to be falling from the sky, Chen Xun and Da Hei Niu looked at it blankly, their eyes slightly opened. It was truly a miraculous workmanship of heaven and earth.

"Two seniors, this is where we are."

Jiang Xuechen introduced respectfully, not daring to overstep the mark, "The cave is right ahead. No one in the Snow Valley dares to disturb me."

"Help us say thank you to fellow Taoist Jinyu. We are very satisfied with this place."

"Senior, if you have any instructions, just call in front of the cave and Xuechen will arrive at any time."

"it is good."

Chen Xun nodded calmly, and his spiritual consciousness had penetrated into the cave. He had everything he needed, and the aura was so rich that they had rarely seen it in their lives.

"Moo~" The big black bull snorted heavily, showing great interest in the spirit gathering array.

Jiang Xuechen gave another salute and then disappeared here. Yuanying Ancestor practiced in seclusion for hundreds of years, and she did not dare to disturb him.

"Old Niu, how is this environment?"

Chen Xun laughed, surrounded by a dense forest, heavy snow fell one after another, and the mountains and rivers were all the same color, no matter how high or low they were.

The big black cow had already started running happily, raising its head from time to time to look at the waterfall above the dense forest, but there was a snowdrift on its head.

"Old Niu, you go to the cave to set up the formation. I'll transplant some crane spirit trees and think of the next plan."

There was a faint light flashing around Chen Xun, and Feng Xue couldn't get close at all. He found a piece of snow to sit down, "It's a lot easier now that I have the strength."

"Moo?" The big black cow ran over and kissed Chen Xun, "Moo!"

"Go." Chen Xun smiled and patted the big black cow.

The big black bull roared and rushed towards the cave immediately. It had to prepare many things, including exploring the surroundings.

Chen Xun was lying on the snow, looking up at the sky, his eyes full of contemplation.

This fire attribute technique is naturally useless to them, it is just used to deceive others. If the spiritual roots are not matched and forced to practice, it will cause meridians to be disordered, which will inevitably lead to a big feast.

His original plan was to exchange favors and ask for the five-line spiritual root technique in the future, saying that it would be used for research.

But they didn't expect that the war in the world of immortality would give them many opportunities, and they would be treated as guests by a big force.

In this world of cultivating immortals, if he wants to cultivate their five-line spiritual roots to the Nascent Soul stage, the consequences will be unpredictable. It is estimated that all the monks from the Northern War will come back.

I guess one more sentence: Hey, isn’t this the ultimate opportunity? Why bother? ! Fellow Taoists, have a dissection!

"Hey, the world of immortality."

Chen Xun shook his head and sighed, then showed a faint smile, "But staying here is indeed of great benefit. I still have many problems in Nascent Soul cultivation, and it's time to study hard."

In the past, when they were in the sect, they did not dare to learn from their masters. They were not strong enough and problems would always arise if they had too much contact.

When the time comes, the master and disciple turn against each other and the sect encircles and suppresses him, which will not be beautiful.

"The giant flying boat project also requires the use of weapon refining. I will ask for advice when the time comes. I don't understand the principle."

Chen Xun gradually looked at a crane tree in the dense forest, "The dragon bone and so on, it's up to you, good brother..."

Suddenly, the Heling tree that Chen Xun was looking at began to sway with the snowy wind, making a rustling sound.

"He Lingshu, my good brother, how come after breaking through the Nascent Soul stage, I find that you are becoming more and more extraordinary."

Chen Xun's eyes narrowed slightly. They had met many spiritual trees along the way, but none of them had the strange characteristics of the crane spiritual tree.

Especially for the Yuyuan fruit tree, it will reach its peak in three thousand years. Even if it reaches the limit, it will die at most, and no death energy will be born at all.

"Item refining, my flying boat is quite large. I don't know how many materials are needed. I have to plan carefully how to redeem it."

Chen Xun had a thoughtful look in his eyes, sorting things out in his mind so that he could do things safely, "I still need to ask the craftsmen who make flying boats for advice."

"There is also the Xumi Mine. I need to make a storage ring big enough to hold it."

The order in Chen Xun's mind has become clearer and clearer, "As a mobile home for me and Lao Niu, the spirit stone is powered by energy. I feel that something is wrong."

As he thought about it, a look of pain appeared on Chen Xun's face, and he firmly disagreed.

Half a day later.

A cow's cry came from the cave in the distance. Chen Xun gradually stood up and turned into a ball of light and shadow, knowing that the big black cow had made arrangements.

In the cave, Chen Xun's spiritual consciousness spread out instantly, his expression changed slightly, and he encountered a strong obstruction.

"Moo~" The big black cow was lying on the wall of the cave, its eyes showing an inexplicable arrogance.

"Awesome!"

Chen Xun sighed in admiration, "Old Niu, you have been promoted again?!"

"Moo~~~!" After hearing this, the big black bull suddenly got excited, rushed towards Chen Xun, and rubbed against him. In the world of the formation, all the major formations were superimposed.

Concealment, defense, killing, and the consumption of operation, if the three natal formation flags are not broken, and the energy of the five elements of heaven and earth is endless, then they can continue to operate together.

Chen Xun clicked his tongue in amazement. Not only was he able to break through the shackles of magic power, but it also added a lot to Da Hei Niu's formation.

Also, after Da Hei Niu broke through to the Nascent Soul stage, his attainments in that formation were really amazing. There is no trace of them in the world of immortal cultivation, let alone breaking the formation.

"Moo~~~" The big black cow snorted out a long breath. It liked to see Chen Xun like this and felt quite satisfied.

"Old Niu, I really saved a lot of spiritual stones."

Chen Xun said suddenly, looking towards the cave wall, "Look at these crystals and jade."

"Moo~" The big black cow also turned his head and looked to the west. There was milky white light everywhere, soft but not dazzling, illuminating the cave.