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At the moment of breakthrough, Wang Xu felt that the momentum of his whole person began to rise, and every cell in his body seemed to be able to breathe, constantly absorbing invisible energy and beginning to transform.

Wang Xu can clearly feel that his skin is approaching steel, the density of blood is greatly increasing, and the strength of his muscles is gradually becoming stronger, and when the transformation is completed, his skin can be comparable to steel, except for A-level technological weapons, even if he is bombarded with B-level cannons, he will not be able to cause any damage to him!

The third to fourth order is a huge watershed, and if you want to cross this ravine, in addition to filling it with a large amount of cultivation resources, you need to accumulate little by little, and then make a leap and metamorphosis of the biomass.

Wang Xu didn't expect that just because that mysterious flame devoured the corpse of the wire beetle, he would actually promote himself to the fourth order!

This mysterious flame is too terrifying, it can unconsciously burrow into its own body, and it can also devour the corpses of insects and beasts, what if one day this flame can't think of it and swallows itself?

Wang Xu suddenly broke out in a cold sweat, but after thinking about it, this flame was in his body, and he was half of his own person, so he wouldn't do anything to himself.

However, the flames were able to devour the corpses of insects and beasts, providing him with powerful energy, which made Wang Su's eyes light up.

"If there are enough insect and beast corpses, wouldn't my strength be able to rush up like a rocket?" Thinking of this, Wang Xu did not hesitate and took out the corpses of several insect beasts from the space ring.

Contrary to what Wang Su thought, the flames did not reappear.

Wang Xu put away the corpse of the insect beast, thought carefully for a while, and thought of a possibility.

He took out the corpses of the two third-order insect beasts he had hunted from the spatial ring and placed them on the ground.

Sure enough, in just a moment, the flames drilled out of Wang Xu's body again, wrapping the corpses of these two third-order insect beasts in their entirety, and then gradually devouring and returning to Wang Xu's body.

A stream of heat spread out in Wang Xu's body, exactly the same as Fang Cai's feeling, this time Wang Xu could clearly feel that the warm current was energy, but this time the energy was relatively much less.

"The fourth-order is different from the third-order, and the energy provided by the corpses of the third-order insects and beasts is not enough to increase the strength of the fourth-order me." After figuring out this question, Wang Xu was overjoyed.

When it comes to cultivation, Wang Xu has no shortage of talent, the only thing he lacks is cultivation resources!

And now, there was a mysterious flame that could transform the corpses of insects and beasts into cultivation resources, and Wang Xu could imagine that his strength could rise steadily.

The flames only devour the corpses of insects and beasts above the third order, and the king must find the insects and beasts of the third order to hunt them.

But how could third-order insects and beasts be so easy to encounter? Wang Xu has been here for almost a day, but he has only met seven third-order insect beasts, and the eighth is still this wire beetle.

Of course, there is another way to obtain the carcasses of insects and beasts - black market purchases.

Insect and beast corpses have great value, can be used to cast battle armor, scientific and technological weapons, is an indispensable material, in the outside world insect and beast corpses are very expensive, therefore, there will be powerful genetic warriors to hunt insect beasts outside the safety zone, and then bring back insect beast corpses.

The government will not prohibit this, but whether it can hunt insects and beasts is another matter, the insects and beasts outside the safe zone are much more dangerous than the trial areas, and the fourth, fifth, and even sixth-order insects and beasts will be infested, and the difficulty of hunting insects and beasts can be imagined.

"The price of buying on the black market is too expensive, even if you sell me, you may not be able to afford it, and now the only way to do it is to participate in the trial." Wang Xu pondered, "When I wait for the next trial, I will apply to go to the B-level region, where there are many third-order insect beasts, and most of the fourth-order elite insect beasts, and their strength will increase faster." ”

The third-order insect beast is now not at the same level as for Wang Su, just like the wire beetle just now, if he does it again, Wang Xu can make the wire beetle different with just one sword.

The gap between the fourth and third orders is by no means ordinary.

Of course, Wang Xu wanted to hunt the fourth-order elite insect beasts even more, and it was even faster to improve in this way, with his current strength, it would not be a problem to deal with the fourth-order elite insect beasts.

While thinking about the future problems, Wang Xu picked up the long knife and cultivated the "Nine Columns of Thunder Knife". It was getting late, Wang Xu had just been promoted to the fourth rank, and his strength had not yet stabilized, but he didn't want to encounter a thousand-legged soft worm, and it just so happened that this cave was quiet and empty enough, and it could be used as a temporary cultivation room.

After being promoted to a fourth-order genetic warrior, Wang Xu felt that the "Nine Columns Thunder Knife", which he couldn't understand before, suddenly became clear, and many unobstructed places were completely unobstructed.

The third column, lightning strikes.

The fourth column, Rush Lightning Strike.

In the fifth column, a hundred knives are thunderous.

After cultivating until the fifth column, Wang Xu felt the difficulty, and immediately understood that this "Nine Columns of Thunder Knife" was not a low-level ancient martial art at all, but a more intermediate advanced ancient martial art, and just a move that he couldn't even understand the fourth order was enough to represent that the power of this ancient martial art had not been swung to the extreme.

Thinking of this, Wang Xu did not hesitate to cultivate in the cave.

…………

The next day, Wang Xu got up from the ground, in good spirits, around the cave, all kinds of knife marks, ravines, cutting marks are all over, the ground is full of rubble, the whole cave is in a mess, it is the masterpiece of Wang Xu who practiced all night last night.

The strength of the fourth order was displayed, and Wang Xu's ancient martial arts progress was thousands of miles away, and even the "Basic Flesh Body" also broke through to the fourth layer.

It stands to reason that even if Wang Xu broke through to the fourth order, it would be impossible for him to make such great progress, but Wang Xu realized that this leap of progress was probably brought about by that mysterious flame!

The mysterious flame was able to convert the energy of the insect beast corpse into his own energy, which was already unbelievable, and it was not uncommon for Wang Xu to take a big step forward in his strength.

"Whew~" Walking out of the cave, Wang Xu absorbed the fresh air from the outside world and felt the warmth of the rising sun.

Wang Xu didn't stop any longer, strode forward, and hurried towards Xu Yuan and the others with a step of tens of meters.

Now that Wang Xu has been promoted to the fourth order, he is no longer afraid of Xu Yuan and the others at all, and when the trial is completed, Wang Xu can directly assess the title of elite and move his parents to the reserve, even if Xu Yuan's energy is great, can he still stretch his hand into the reserve?

"Huh? What about them? It only took Wang Su a moment to get to the station, but now his energy barrier has been put away, and all the dwellings he has set up have been destroyed.

The radiation range here is up to standard and belongs to the superior temporary security zone, how could Xu Yuan give up here?

Wang Xu couldn't figure it out, and he didn't need to think about it, with Zhang Xinglin here, Tang Yan, Song Zhen and others were all third-order genetic warriors, and it was difficult for Xu Yuan to do it.

Putting away his thoughts, Wang Xu stepped out and continued to embark on the path of trial.

The time of the trial is one day and one night, and now his points are 2o2 points, if he wants to compete for the standings, he has to be at least three hundred, the corners of Wang Xu's mouth turned up slightly, these three hundred points are no longer difficult for him at all, the fourth-order genetic warrior is here, as long as he is not besieged by the fourth-order elite insects and beasts, he will not die at all, and he can completely sweep the entire netbsp; "Poof! Burst! Burst! With a single slash, the three second-order insect beasts that had just wanted to pounce were split in half, and flesh and blood were splashed everywhere.

Putting away the corpses of the three insect beasts, Wang Xu probed lightly and smiled.

After hunting for a morning, Wang Xu had already killed hundreds of second-order insect beasts, and there was no problem with breaking through four hundred points, and during this period, he was lucky enough to encounter three third-order insect beasts, all of which were cut down by Wang Xu with a knife, and then let the flames swallow it and turn it into his own energy.

"It's almost noon, so we have to rush to the 'center point.'"

After the trial time, the Gene Academy will take the students back to the Academy, but the teleportation point is at a fixed point coordinate, and the students must arrive before the specified time, otherwise they will be considered dead and abandoned in the insect and beast area.

…………

On the other side, an empty radiation zone, where a group of students had begun to wait for space-time teleportation.

Each student's face was somewhat tired, the battle armor on his body was stained with blood, and even a few were injured, and the wounds were still oozing blood.

"Monkey ......" a female student collapsed on the ground, whimpering, tears flowing uncontrollably.

The student who saw this scene sighed, the monkey is the nickname of a male student, and this girl is boyfriend and girlfriend, both of them are third-order strength, but they didn't expect to encounter a powerful third-order insect beast this time, and the monkey lured the insect beast away alone in order to protect the girl...... The consequences can be imagined.

This kind of incident has been happening in several teams, but they just don't cry because their eyes are red.

At this time, a few people came in the distance, and the leader was Xu Yuan with a smile on his face.

Xu Yuan's mood is not to mention how happy he is, not to mention that he can remove Wang Xu, the thorn in his eye, and he can recruit a ruthless person like Zhang Xinglin to join, and even Tang Yan has always been by his side, this feeling of being supported makes Xu Yuan feel happy from the beginning to the bottom of his feet.

It's just that the guy named Song Zhen doesn't know each other very well, and he hasn't given him a good face, so Xu Yuan asked people to break his legs, and now Song Zhen is still limping when he walks, and he can't walk normally at all, let alone fight alone.

"Zhou Ge, you villain, Brother Wang trusts you so much, you actually ......" Song Zhen gritted his teeth and looked at Zhou Ge and said.

Zhou Ge's body was shocked, his eyes were full of guilt, and he lowered his head and said, "Song Zhen...... I'm sorry, I really didn't expect Xu Yuan to do this, I'm sorry......"

Zhou Ge's strength was the weakest in Wang Xu's three-person team, and the insects and beasts he hunted each time were also the least, and the resources allocated were naturally the least, which made his progress slow.

Xu Yuan found him, gave him 100,000 earth coins, asked him to provide a location during the trial, and secretly sprinkled the "green flavor liquid" on the corpse of the insect beast, this liquid will attract third-order insects and beasts to come, under the siege of the upper ten third-order insects and beasts, Wang Xu will definitely be injured, so as to make Wang Xu suffer.

Zhou Ge saw that this matter was not difficult, and 100,000 earth coins were too tempting for him, so he agreed to it.

But Zhou Ge didn't expect that what Xu Yuan gave him was not a green liquid at all, but a "purple scale liquid" that could attract fourth-order elite insects and beasts!

The attraction of the purple scale liquid to the fourth-order elite insect beast is huge, as soon as the fourth-order elite insect beast comes, Wang Xu and the others will definitely have to choose to escape, and at this time, Xu Yuan will build a layer of energy barrier in the radiation zone...... The plan came to fruition perfectly.

Several people came to the center point, Zhang Xinglin immediately sat down, silent, and Tang Yan sat aside to rest quietly.

"Song Zhen, in order to save your other leg, obediently hand over the corpse of the insect beast in the space ring to me." Xu Yuan walked up to Song Zhen and said with a touch of ruthlessness.

"You ......" Song Zhen was angry, "You are dreaming!" ”

"Humph! I'm just here to inform you, not to discuss with you, and you, Zhou Ge, hand over your insect and beast corpses as well. Xu Yuan looked at Zhou Ge, and Zhou Ge's face suddenly turned white.

Zhou Ge's face was embarrassed, he didn't expect that he would help Xu Yuan with his errands, and Xu Yuan would actually attack him, but when he thought of Xu Yuan's ruthless methods, Zhou Ge shivered and transferred all the insect and beast corpses to Xu Yuan's space ring.

"It's your turn." Xu Yuan faced Song Zhen and said indifferently.

Zhang Xinglin, who was sitting cross-legged, opened his eyes, glanced at Song Zhen, hesitated for a moment, and finally closed his eyes again.

Zhang Xinglin's actions Xu Yuan naturally noticed it, Xu Yuan was glad in his heart, if Zhang Xinglin opened his mouth, he could only sell face, but now Zhang Xinglin didn't want to be nosy, so it was the best.

Tang Yan wanted to speak on the side, but when he thought that every time he spoke for whom, he would be targeted by Xu Yuan, Tang Yan fell silent all of a sudden.

"Want bug carcasses? I've got a lot of them here, as long as you have enough strength to take them. Suddenly, a cold voice came, and Wang Su, who had a gloomy face, slowly walked over from a distance.