Lu Xiao stood on the wide balcony outside the attic, holding the Shadow War Knife and slashing out again and again.

The reason why the knife technique of "Nine Thunder Knife" is so powerful is that it relies on a wonderful means of exerting force.

Ordinary people swing a knife with all their might, it may be ten percent powerful!

And the cultivator of the "Ninefold Thunder Knife" swung out a sword, only using seventy percent of his power.

At the same time, after sending out the first gravitational path, they will immediately let the body emit the second gravitational path.

The same seventy percent strength, two forces superimposed, is fourteen percent strength!

And "Ninefold Thunder Knife", as the name suggests, has a total of nine layers.

The first weight can be one more dark energy, and it can exert 14% of its strength!

The second is that you can send two more dark energies and exert twenty-one percent of your strength!

The third is that you can send more triple dark energy and exert twenty-eight percent of your strength!

......

And so on, when it comes to the ninth level, you can use nine more layers of dark energy, that is to say, one move can exert seventy percent of your strength!

Seventy percent of the strength is a full seven times the original body strength!

What is this concept?

In other words, a junior warrior, if the "Ninefold Thunder Knife" sword technique comprehends the ninth level, then he can almost be comparable to a junior general!

That's the horror of "Nine Thunder Blades".

Its principle is very simple, in some high-martial arts worlds, it may just be an ordinary sword technique, and it is used to lay the foundation, and there are not so many bells and whistles.

The cheats for the Devouring Starry Sky and Earth chapter are almost all in this practical style.

But because of the terrifying physical quality of the warriors, this kind of cheats that can double their strength can give full play to their greatest advantages.

And "Nine Thunder Knife" is one of the best.

Lu Xiao slashed hundreds of knives in a row, trying again and again to see if he could send out a dark power superimposed on the first knife on the basis of swinging one knife, but he was never able to do it.

The principle of "Nine Thunder Knife" seems simple, but because of its simplicity, it is also the most difficult to do.

You know, swinging the knife is only over in an instant.

At such a moment, it is necessary to let the body exert force at the same time, and then send out another gravitational force inside one after another.

This kind of multi-force technique may only be as difficult as a layer of thin paper, but it is such a thin layer, some martial artists may not be able to break through in their lifetime.

Yes or no, there's no other possibility, it's that simple!

"It's still not too ambitious," Lu Xiao thought, "This "Ninefold Thunder Knife" knife technique is the first, and there are 18 knife techniques. ”

"According to the cheats, practicing these 18 knife moves is conducive to comprehending the first force of the "Nine Thunder Knife". ”

Thinking like this, he gave up continuing to stumble in the dark and started from the basics.

In the past few days, the knife practice has almost been like this.

Every time I watch "Nine Thunder Knife" first, I figure it out while watching it, and try to practice it after I finish figuring it out.

After failing, he gave up decisively and began to practice the recorded 18 knife techniques, from which he learned the skills of exerting force.

Because there was an assessment the next day, Lu Xiao left a little strength in today's practice, and he didn't get exhausted from practice, so he went to wash and sleep when the time was almost up, and waited for the arrival of the next day.

......

At 11 o'clock at noon the next day, Lu Xiao ate a sumptuous lunch, and it was not until 11:50 that Yang Hui, the god of war, appeared.

"Let's go, let's go to the Nine-Story Building. Yang Hui said.

Lu Xiao nodded, followed behind Yang Hui, and headed towards the Nine-Story Building.

With nine floors, each floor is about 6 meters high and more than 150 meters long and wide, making it a truly giant tower.

From the outside, the design of the nine-story building is very classical, but when you go inside, you will find that there is a sense of technology inside.

The floor and interior walls are made of hard alloy, and there are many high-end precision instruments.

Walking inside, you can still hear bursts of air explosions and shouts from time to time, which should be made by the students when they practice martial arts.

"We went to the 9th floor. ”

Yang Hui said as he took Lu Xiao into the elevator.

After a "ding" sound, the elevator door opened, and outside was the highest floor of the nine-story building.

When you get out of the elevator, you are greeted by an empty lobby.

There were some cushions in the hall, and some young men and women were sitting casually chatting, and English, French, Chinese and other languages were mixed together, and they could even talk.

When Yang Hui brought Lu Xiao in, many people stopped chatting and turned their heads to look at Lu Xiao.

"New? Pretty handsome. "A beautiful black woman's eyes lit up.

"Yellow people, are they from Huaxia again?" asked the white young man next to her, seeing Lu Xiao nodding, he couldn't help frowning and complaining, "There are too many Huaxia people in this elite training camp!"

"Brother, come on!" a yellow-skinned young man shouted with a smile, "If you come in, we Huaxia people will have one more." ”

After that, under the leadership of Yang Hui, the god of war, the two came to the innermost part of the hall.

There is a passage with large rooms on either side.

Soon, Lu Xiao was taken to a room on the innermost floor.

This room is not very spacious, and it is even a little dim.

"Smack!" the lights turned on.

Lu Xiao glanced around and found that there were only two sofas in the room, and there was a dark blue helmet on each sofa.

"These two helmets were successfully imitated by our human scientists with a lot of effort. ”

"Their original bodies are consciousness sensors in the virtual space excavated from ancient ruins and civilizations. ”

"We can only imitate this simple consciousness sensor, and as for the host of the virtual space, it is still an ancient machine that has been sleeping underground for an unknown number of years. ”

Yang Hui pointed to the helmet on the sofa and said.

"Virtual space?"

Although Lu Xiao knew that there was such a thing, when he really saw it, he still felt very magical.

After all, such a high-tech product is really beyond his previous cognition.

In his previous life, this was something that could only exist in science fiction.

"Well, when you put it on, your consciousness enters a virtual space that is 100% realistic, almost the same as the real world. Yang Hui explained.

"After entering the virtual space, we will let you enter the 'Trial Tower' and accept the A-level test!"

Lu Xiao nodded, chose a sofa to sit down, and held the dark blue helmet in his hand.

"You can also lie down for comfort!"

With that, Yang Hui lay down on another sofa.

Lu Xiao also followed his example and lay flat on the sofa.

"As soon as you put on the helmet later, your consciousness will enter the virtual space, so don't panic when the time comes. ”

"Now, let's put on our helmets together!"

The moment he put on the helmet, Lu Xiao only felt his head buzz.

The next moment, he appeared in an endless field of silver, and in the distance was a seven-story tower.

Lu Xiao looked around: "This is the trial tower space?"

PS: The first update, ask for recommendation votes ❤