Upon hearing Lin Yun's words, the Bull Demon was stunned for a moment, then he realized what was happening.

During this period, he saw the Golden Essence being sold many times on the Cosmic Trading System. He was very anxious because he couldn't buy it at such a low price, and he couldn't help but feel that he would rather spend twice the price to buy it.

Suddenly, he saw that someone in reality possessed the Golden Essence Liquid, so he voiced his long-held thought.

"My fault, my fault. Brother Lin wants rare and precious materials that can help with cultivation, that's fine too. Wait, Brother Lin cultivates... the martial arts system?" Niu Mo said, but at the end, his brows furrowed.

Only then did he notice the type of rare and precious materials that Lin Yun had mentioned.

The martial arts system is a very famous and powerful system among countless cultivation systems. Although the martial arts system is not easy to cultivate, the owner of the Cosmic Trading System is uniquely blessed, and there are many who cultivate the martial arts system.

However, martial arts-related natural treasures are extremely rare. In addition, there are many owners of the universe trading system who practice martial arts, so martial arts-related natural treasures are hard to come by in their circle.

"These are all the martial arts-related rare and precious materials I have. I also have some other kinds. Brother Lin Yun, please take a look and see if there's anything you need. However, I know where to find more martial arts-related rare and precious materials, so I'll go and exchange them right away." With a thought, some information appeared in front of everyone, and then he hurriedly left.

He had been here for some time, during which time he had visited many owners of the cosmic trading system. He didn't have much that Lin Yun needed, but he knew who did.

This is also an advantage of arriving early.

However, he needs to act quickly.

Some of his clansmen are also owners of the cosmic trading system. They are also body cultivators and definitely need the Golden Source Liquid. If he arrives late and someone else gets it, he will suffer a huge loss.

"This person..."

Lin Yun found it amusing to watch the Bull Demon King leave in such a hurry.

He hadn't even shown the other party the Golden Source Liquid, yet the other party already believed he possessed it.

It's clear that the other party doesn't seem to have any ulterior motives.

Lin Yun also prefers to do business with people like that.

Those who are too cunning and calculating make trading too exhausting.

"Let them go and get the rare and precious materials related to martial arts," Lin Yun thought to himself.

He wasn't unaware of how the other party planned to obtain martial arts-related rare and precious materials.

Asking the other party to replace it adds an extra step and an extra middleman. Wouldn't it be more cost-effective for them to replace it themselves?

Actually, that's not the case!

This bull demon needs rare and precious materials for body refinement, so he takes this matter very seriously.

Those owners of universe trading systems who possess martial arts-related rare and precious materials may not necessarily need body-refining rare and precious materials. If they go to trade with them, they may not be able to get a high price.

As for how Bull Demon King won over the other party, that's up to Bull Demon King himself.

Even if Bull Demon suffers a great loss and pays a heavy price because of this, that is Bull Demon's business.

With that in mind, Lin Yun began to look at some of the information released by the Bull Demon.

"Blood Blue Flower, a rare and powerful natural treasure. It can be consumed by cultivators at levels ten to eleven. After consumption, it can increase one's strength by two to three levels. It is most effective for body cultivators, lasting for ten hours, after which the strength will decrease by one level. It lasts for three days without diminishing potential..."

A glint of light flashed in Lin Yun's eyes.

While explosive rare and precious materials are also available on the Cosmic Trading System, most of them deplete the user's potential, and very few are suitable for cultivators at levels ten to eleven.

There is no such thing as something that doesn't deplete a person's potential.

Unexpectedly, this bull demon actually possessed it.

This kind of rare and precious material, if used properly in a critical moment, is like a lifesaver, and it won't diminish its potential, so it's a really good thing.

Currently, his martial arts realm is at the peak of level ten, and his true martial strength is at the peak of level eleven. If he takes the medicine, he will rise two or three levels, and his true martial strength may be able to break through to level twelve.

That's amazing!

Lin Yun glanced at the price.

One trillion spiritual crystallizations!

"Not a lot, but not too much..." Lin Yun thought to himself.

If it's only suitable for level 10 cultivators, then one trillion spirit crystals would be outrageous.

One trillion dollars could buy more than a dozen level 10 peak robots on the cosmic trading system.

However, one trillion can only buy one level eleven early-stage robot.

Therefore, this Blood Blue Flower is not untradeable at this price.

If it could help him break through to the twelfth level, that would be an exceptionally good deal.

A level 11 peak robot only has seven trillion spirit crystals, while a level 12 early stage robot has one hundred trillion spirit crystals.

Although it only lasts for ten hours, it can play a significant role in crucial moments.

With that in mind, Lin Yun casually checked out this rare and precious material on the Cosmic Trading System.

"The last time it appeared was two months ago. At that time, the price was 170 billion spiritual crystals per plant. The time from when it was listed to when the transaction ended was 0.0001 seconds."

Soon, the Cosmic Trading System provided Lin Yun with information.

"These items are bought instantly. There are 170 billion spiritual crystals on the Cosmic Trading System, while there are 1 trillion spiritual crystals in reality. The difference is five or six times. No wonder the owners of these Cosmic Trading Systems are unwilling to sell on the Cosmic Trading System..." Lin Yun shook his head.

"This thing, I can take it..." Then, Lin Yun thought for a moment, and a bitter smile appeared on his face.

No wonder, back on Earth, many people said that they couldn't go shopping in real-life malls or online shopping malls because once you see something you didn't plan to buy, you can't help but want to buy it.

Originally, he only intended to purchase rare and precious medicinal materials related to martial arts, but now...

"It's alright. One trillion spirit crystals is acceptable. Buying these life-saving treasures won't be superfluous. Judging from that bull demon's appearance, he really needs the Golden Source Liquid. I can negotiate the price with him later."

Lin Yun thought to himself.

And so, Lin Yun decided on the first rare and precious material to trade with the Bull Demon.

"The Void Spirit Grass, even an ordinary person without talent can leap to the fifth level of cultivation after consuming it, becoming capable of flying and teleporting in an instant. Most importantly, it can enhance cultivation talent, allowing an ordinary person without talent to embark on a rapid path of cultivation. Three hundred billion spirit crystals..."

Lin Yun quickly saw the description of the second type of rare and precious material and was slightly surprised.

He had never seen such a rare and precious material in the cosmic trading system before. He had to admit that the universe was truly amazing, possessing such a rare and precious material.

Just think, back when he was an ordinary person, if he had obtained such a rare treasure, he could have become a great master of the Golden Core Realm in one leap. Wouldn't that have been incredible?

If people from the Heavenly Realm and Immortal Realm don't descend to the Golden Core Realm, they are practically invincible on Earth. (8)