Three hundred meters underground.

In an underground chamber, there are no fingers visible here, but it is extremely dark.

"Click......"

Slowly, the door to the chamber opened.

A bland-faced Xuan Yun walked out of it.

"In recent days, that barrier seems to have been slightly touched, and I don't know if it can be broken through this time." Xuan Yun Wu groaned to himself.

Then Xuan Yun raised his head and looked at a woman with a delicate face on the side, and asked, "Did anything happen during my retreat?" ”

This woman is a high-tech Force robot, with the same appearance as a human woman, with a variety of functions, and is also a work assistant for Xuan Yun.

"Lin Yu, a member of the observation group, has already used up the cultivation time of the Origin Energy Secret Room, and not long ago, he also tested his strength."

"Oh? Test your strength? When Xuan Yun heard this, he immediately became interested.

"What is his strength?"

“3763.42kg。”

"Oh!" Xuan Yun smiled. "If you have the resources, this cultivation speed is quite fast."

"About twenty days ago, it was two thousand seven hundred kilograms, and now it is three thousand seven hundred kilograms, it seems that what Lin Yu said is really good, his physical body's ability to absorb original energy is really extraordinary." Xuan Yun nodded.

If the physical body absorbs the original energy and medicinal power too poorly, then even if there are a lot of resources, it will be difficult to improve quickly.

If the absorption capacity of the physical body is not bad, there are sufficient resources, and the ascension is quite rapid.

In Xuan Yun's opinion, Lin Yu is the latter.

"Also, there's one thing you need to look at." At this time, the female robot said so.

"Oh? What's the matter? Xuan Yun looked over.

"Lin Yu is practicing knife techniques. According to the database comparison, the sword technique he practiced was extremely similar to the "Thunder Arc Knife Method". ”

"Huh?" Xuan Yun's expression moved slightly.

"You open the stereoscopic image, and I'll take a look." Immediately Xuanyun said.

He knew that Lin Yu had purchased the "Thunder Arc Knife Method", but he had said that he would not let Lin Yu continue to practice this "Thunder Arc Knife Method".

"What a disobedient boy." Xuan Yun was a little helpless. "That Thunder Arc Knife Method, it's not something that ordinary people can successfully cultivate. Even if he is the top genius in the universe, it is difficult to succeed in cultivation, and this kid really doesn't hit the south wall and doesn't look back. ”

Although Lin Yu's tenacity made Xuan Yun pleased, Xuan Yun still hoped that Lin Yu would listen to him.

Soon the stereoscopic camera opened, and the stereoscopic image appeared in the room of Xuan Yun.

At this moment, Lin Yu's war knife swung with a blow, and a faint arc emerged.

"Huh?"

Seeing this knife, Xuan Yun was stunned. "That was just now? Am I dazzled? ”

The pace moved slightly sideways, Lin Yu took advantage of the situation and made another knife, and the thunder arc also emerged.

This knife made Xuan Yun stunned in place.

"How is this possible!" Xuan Yun exclaimed in shock.

Even though he was a god of war powerhouse, Xuan Yun's breathing was still gradually becoming heavy at this time.

Lin Yu in the image, between his steps and wandering, the sword is slashed wantonly,

Each knife and style contain a different charm, whether it is light, sharp, or heavy.

But every time the sword technique is cast, there is a thunder arc shining on the blade, this thunder arc is no more and no less, each time it is five or six. Apparently deliberately controlled in this range.

Look at the subtle charm in the sword, and look at the arc of thunder that shines with the sword. Xuan Yun's face gradually changed from horror to solemnity, unprecedented solemnity.

At this time, he had already determined that this Lin Yu had indeed cultivated the Thunder Arc Sword Technique that only the top genius in the legendary universe could successfully cultivate.

After a long time, Xuan Yun suddenly woke up. Said quickly in a tone that was still a little excited. "Call Elder Xu."

"Elder Xu has been called."

The female robot replied with a smile on her face.

Moments later, the call was connected.

"Elder Xu, come to me quickly. Something big is happening. Xuan Yun said quickly.

"Big deal? What's the big deal? Xu Lao was puzzled.

"Mystic Seed." Xuan Yun said cautiously.

Xu Lao on the other end of the call was shocked, and after a while, he quickly responded: "I'll come here." ”

A few minutes later, Elder Xu arrived.

Xu Lao, who was dressed in black, walked into the house, and with a sweep of his eyes, he saw Lin Yu in the three-dimensional image in the house.

At this time, that Lin Yu had already finished cultivating and was sitting there absorbing the Force.

"What's wrong?" Xu Lao looked at Lin Yu, and then his gaze fell on Xuan Yun's body.

At this time, Xu Lao had already noticed that this so-called major event should be related to this Lin Yu.

"Some time ago, didn't I tell you, that time when I talked to this Lin Yu, I warned him not to cultivate the Thunder Arc Sword Technique anymore. But Lin Yu did not listen to the persuasion, but continued to practice the "Thunder Arc Knife Method". ”

When Xu Lao heard this, his expression moved slightly, and he did not immediately refute, but said so. "It's a good thing that young people are tough."

"However, what I didn't expect was that this Lin Yu, he actually practiced." Xuan Yun couldn't suppress his excitement a little.

"Practiced? You said that it was the "Thunder Arc Knife Method", Lin Yu practiced it? Xu Lao was suddenly shocked in his heart.

"Hmm!" Xuan Yun nodded cautiously.

"Xuanyun, you and I have worked together for many years, this kind of thing can't be talked about." After all, Xu Lao was a calm-minded senior, and he didn't rashly listen to Xuanyun's words.

"This kind of big thing, how can I talk nonsense, Xu Lao, please take a look." Xuanyun is colored.

Immediately, Xuan Yun opened his mouth and said to the robot assistant: "Play the video just now again." ”

As the video began to play, Lin Yu in the video showed his own knife technique.

"This ......"

When you see the charm in the sword technique and the shining thunder arc. Even if Xu Lao was prepared in his heart, he couldn't help but gasp.

However, after all, Xu Lao has experienced a lot of winds and waves, but he can endure it, and he has been performing his sword technique for nearly ten minutes, he has seen the end from the beginning without saying a word, and he has also changed angles many times to watch the image of Lin Yu performing his knife technique.

When the image was released, Xu Lao breathed a sigh of relief.

"This Lin Yu has indeed cultivated the Thunder Arc Sword Method." Xu Lao's words were much calmer.

The two glanced at each other, and they both saw joy in each other's eyes.

The two of them, as the gods of war powerhouse, knew very well that the cultivation difficulty of this "Thunder Arc Sword Method" was very high. According to many sources, they even knew the terrifying talent behind the successful cultivation of this "Thunder Arc Sword Method".

"This Lin Yu really surprised us. It was only some time ago that the demon's fighting talent and control over the physical realm were revealed. Now he has actually cultivated this "Thunder Arc Knife Method". Xu Lao said slowly.

"So what do we do now?" Xuan Yun looked at Xu Lao.

"You let that Lin Yu come over, and the two of us will first confirm that he has truly succeeded in cultivating. After that, we'll contact the Shogun. After all, cultivating the Thunder Arc Knife Method is not a trivial matter. After a deep groan, Xu Lao said.

"Hmm!" Xuan Yun nodded.

Inside the training room!

"Hum—"

During the cultivation, the Force Band call message rang.

Lin Yu looked over and suddenly moved.

"It's Xuanyun senior."

Lin Yu hurriedly connected the call.

"Xuanyun senior." Lin Yu said respectfully, Lin Yu still has great respect for this senior master who takes care of himself.

"You can come to my office now, the location has been sent to you."

"Going to the senior's office?" Although he didn't know what his predecessors were going to do, Lin Yu was very wise and didn't ask much.

"Well, I'll go over it." Lin Yu nodded.

Inside Xuan Yun's office.

Xu Lao and Xuan Yun were both sitting here, and the two were drinking tea.

"I didn't expect that on our planet, there would be a terrifying demon who could successfully cultivate the Thunder Arc Sword Method at the Force warrior level." Xuan Yun said.

"Indeed!" Xuan Yun nodded. "And he has only practiced this Thunder Arc Sword Method for a few months."

"The length of time is not too much of a problem, the main thing is his understanding of the nature of heaven and earth. That's the most surprising thing. Xu Lao said.

"What Xu Lao said is very right." Xuan Yun nodded.

As the two of them who are strong in the God of War, they know very well that only by having a natural understanding of heaven and earth can they go further in the realm of the God of War in the future.

And now in the human world, the nine layers and nine God of War powerhouses are just worthy of condensing the original core of the God of War. These gods of war have a very simple understanding of the nature of heaven, earth and the universe.

And there are very few gods of war who can perceive nature and go deeper.

Lin Yu has only been cultivating for a long time, and his understanding of the nature of heaven and earth and the universe is already so deep, which has surpassed the vast majority of war gods.

…………

After coming to the location shown on the map, Lin Yu stood still for a moment.

"I don't know what Xuanyun senior is looking for me." Lin Yu thought secretly in his heart.

Then Lin Yu knocked on the door.

The door opened, and there was a senior Xuanyun in casual clothes, and an old man in a black costume at the same time.

"Senior Xuanyun is a strong man of the God of War, since this old man can sit with Xuanyun senior, he must also be a master of the same level."

"Lin Yu come here." Xuan Yun said with a smile.

Lin Yu walked over with some restraint.

"This is Elder Xu, who is the head of the entire camp." Xuan Yun introduced.

"Xu Lao is good!" Lin Yu greeted in a harmonious voice.

The general leader, Lin Yu secretly smacked his tongue, the general person in charge of the training camp, in the entire camp, it was a word-breaking existence.

"Hmm!" Xu Lao nodded slightly in response.

"Lin Yu, do you know why we came to you this time?" Xuan Yun asked.

"I don't know!" Lin Yu shook his head.

"How is your Thunder Arc Knife Technique, how are you practicing?" There was no superfluous nonsense, and Xuan Yun asked straight to the point.

"Is it the Thunder Arc Knife Method?" Lin Yu was alert in his heart, and as soon as Xuan Yun asked, Lin Yu knew.

"The Thunder Arc Knife Technique is a beginner. The Thunder Arc Knife Method focuses more on the Force than on the physical strength, and I have very little Force in my body, so I don't use that sword method much. ”

Listening to Lin Yu's words, Xuan Yun and Xu Lao's eyes collided slightly, and the two of them saw it. This Lin Yu didn't seem to know the difficulty of cultivating this sword technique.

"Hmm!" Xuan Yun nodded slightly. "This "Thunder Arc Knife Method", it is extremely difficult to cultivate, and when you buy it, the information also prompts that there are many people before you buy it, but no one has ever successfully cultivated. Of course, the so-called no one has ever successfully cultivated, referring to the level of the Force warriors. ”

"On top of this Thunder Arc Sword Method, have you ever felt any aspects of difficulty?" Xuan Yun asked slowly.

"Difficulty?" Lin Yu's heart moved slightly, and the difficulty was naturally there.

Lin Yu himself knew very well that he was quite weak in understanding nature, but fortunately, he watched the natural wind and snow of heaven and earth that time, and his heart was enlightened, and then he entered the wonderful realm of understanding nature again and again, so that he could succeed in his cultivation. If it were someone else, who couldn't feel the wonder of nature many times, I am afraid that they would not be able to cultivate this Thunder Arc Sword Method at all.

Lin Yu pondered for a while and said slowly.

"I am a little lacking in terms of natural perception, but a few days ago, when I fought in the basin, I often spent some time to comprehend the charm of nature. In this way, I was able to successfully cultivate the Thunder Arc Sword Method some time ago. ”

"Sure enough!"

Listening to Lin Yu's words, Xuan Yun and Xu Lao were both shocked in their hearts.

"This Lin Yu is really a genius who understands the nature of heaven and earth."

The two of them realized how difficult it was to understand nature. Some Force warriors, even if they step into the realm of the unity of heaven and man, are extremely close to nature, but their comprehension of the nature of heaven and earth is still slow and touching. And some people, who have never stepped into the unity of heaven and man, can clearly and quickly and efficiently feel the natural universe of heaven and earth. And Lin Yu is obviously this kind of person.