It seems that during the period of coma, some unusual changes have taken place in the evolutionary tree without Duan Fei's knowledge. Although he doesn't understand what's going on, combined with the disappearance of the source species, Duan Fei feels that there must be a special connection between the two.

After entering the evolutionary system again, Duan Fei found that except for a "perfect genetic engineering", other attributes of the body have not changed. Power agility is still level 3, exploration ability level 2 and mental power level 1.

Their level has not been improved, but Duan Fei's strength is several times stronger than the original. Duan Fei thought that this should be the ability of "perfect genetic engineering".

For the first time, it changed Duan Fei's genes and eliminated the defects in his genes, so as to make it more perfect and excellent.

As we all know, a person's appearance, wisdom, height, and all other factors are determined by your genes. The better your genes are, the better all aspects of your body will be. After the "perfect genetic engineering" improved Duanfei's genes, although Duanfei's level of physical attributes has not changed, all aspects of Duanfei's body itself have been greatly strengthened.

It's like a "cardinality" problem. China has a population of 1.3 billion and Japan has a population of 100 million. On this premise, the population of the two countries has also increased by 3%, but the change in the number of people is very different.

Duan Fei's original strength and other attributes become stronger, then the increase of level will naturally be infinitely amplified.

Thinking of this key point, Duan Fei's heart was immediately filled with excitement and surprise.

If the "perfect genetic engineering" can really achieve such a function, then the ability of this thing is almost against the sky, because Duan Fei knows better than anyone that genetic changes will definitely not only enhance all aspects of the body.

Genetic shackles.

Duan Fei flashed the name in his mind.

In a previous life, a strong man once sighed before he died: "evolution is infinite, but individuals are limited after all!"

When trying the last evolution, the strong man completely collapsed because his genes could not withstand the huge impact brought by the evolution process, and finally died. His death tells us that although evolution can continue all the time, individual genes make evolution come to an end. Later, people called this defect of evolution "genetic shackle".

The reason is very simple. The quality of each biological gene determines how far it can evolve. If the gene is inferior, it may only evolve once or twice and then stop. If the gene is excellent, it will have the opportunity to become a peerless strong man.

Thinking of this, Duan Fei's heart "plop, plop" jumped fiercely.

If so, then this "perfect genetic engineering" can break the genetic shackles. Without the genetic shackles, Duan Fei can continue to evolve and even surpass the S-level awakener.

At this moment, Duan Fei suddenly had a feeling of being hit by happiness.

How many strong people in previous lives have spent their lives looking for ways to break through the shackles of genes, exhausting their efforts, and none of them has failed in the end. However, Duan Fei has the plug-in existence of the evolution tree. As long as you spend some evolution points, you can improve Duan Fei's genes infinitely. How incredible.

Of course, there are still too many evolutionary points for Duan Fei to start the "perfect genetic engineering", but it is definitely worth it. Evolutionary points can be accumulated slowly, but the perfection of genes can really be met but not sought.

After learning the true ability of "perfect genetic engineering", Duan Fei's mood couldn't calm down for a long time. After a long time, Duan Fei came back from the previous shock.

At this time, there was another roar of zombies in my ears. It was obvious that the battle had just attracted some zombies. Duan Fei frowned. In order to avoid unnecessary trouble, he shook his body and left here quickly.

The task of luring has been completed. It's time to meet them.

Duan Fei's figure moved and disappeared here in the blink of an eye. On the empty ruins, there were only headless bodies on the ground, which seemed to tell the world that there had been an absolute massacre here just now.

At this time, Xia Ke and his party had successfully fled the block and came to the agreed intersection.

Behind a hidden corner, a group of people looked at the distance with worry, as if they were waiting for something.

"After such a long time, nothing will happen to that man!" At this time, officer Li in the crowd suddenly said.

As soon as the voice fell, everyone's face changed and showed a look of concern one after another. Twenty minutes later, Duan Fei didn't appear, which made everyone feel bad.

In the doomsday, everyone's spirit is in an extremely tight state. Under such circumstances, it is easy to have many associations.

They believe that although Duan Fei has strong strength, he is a person after all. He is likely to have died under the pursuit of so many zombies.

"Team Li, if you don't speak, no one will think you are mute!" Xia Ke frowned, and his cold eyes fell on his face like a sharp knife.

Feeling Xia Ke's murderous eyes, officer Li's heart tightened slightly, and his voice couldn't help but decrease a little: "however, after such a long time! I'm afraid something will happen. Why don't we first..."

"Team Li!" Before he finished, Xia Ke directly interrupted him and said coldly, "we have an appointment to gather here, so we must keep our promise. Besides, if it weren't for him, we might have lost our lives. How could we do such a thing of crossing the river and tearing down the bridge."

Hearing Xia Ke's words, officer Li's face flushed slightly, showing an embarrassed look.

In fact, he does think of everyone. The outside world is extremely dangerous. If they stay here for one more minute, they will be more dangerous.

Of course, who is right and who is wrong is inconclusive. If we do, it is indeed a rational choice, but we don't have a trace of conscience.

Sensing the strange look of others at him, officer Li lowered his head and stopped talking.

As time went by, everyone became more and more anxious. When Xia Ke himself wavered, the figure finally appeared in front of them.

After seeing Duan Fei's figure, Xia Ke rushed over first and came to Duan Fei, followed by others.

"You're finally here. We're all worried to death!"

Other people were also talking around, expressing their inner joy in words.

"There was an accident on the road!" Duan Fei smiled and explained to them.

Duan Fei didn't cheat them. On his way back, Duan Fei met a group of zombies attracted by the sound. However, in order to be in a hurry, Duan Fei spent a lot of energy to get rid of them, but he also wasted a lot of time.

"Accident, nothing?" Hearing Duan Fei's words, a teenager suddenly asked.

"Nothing!" Duan Fei smiled.

At this time, everyone found that Duan Fei had no wounds except some messy clothes. It was incredible.

This picture fell into Xia Ke's eyes, which shocked her. How powerful Duan Fei is if he can successfully escape under the pursuit of so many zombies. If she guessed that those zombies were killed by Duan Fei, she didn't know what expression she would show.

Although she was surprised, she didn't say her questions. Everyone has his own secret, not to mention a strong man like Duan Fei. Xia is not a fool. She knows some things and it's better not to say them.

"Now that everyone is here, you can start quickly. I'll let Jinbao escort you to the shelter!" With that, Duan Fei patted Jinbao standing beside him. Jinbao understood Duan Fei's meaning and gave a humanized roar to the people.

"Won't you come with us?" Hearing Duan Fei's words, everyone's face changed, and Xia Ke asked directly.

Strong people like Duan Fei, as long as they stay with them, that is the guarantee of safety. If Duan Fei leaves, who will protect them.

"No!" Duan Fei shook his head and said, "I said I still have a sister. Now I've been missing for three days and I don't know how she is. So I have to go back to find my sister. When I find my sister, I'll go to the shelter. Therefore, I can't accompany you for the time being! But Jinbao will protect you. Don't worry!"

"Are you sure you want to separate from us!" Xia Ke bit his lips and confirmed again.

"Yes, I must leave!" Duan Fei looked solemn.

"Well, let's say goodbye to Duan Fei. I'll wait for you in the shelter!" After hearing Duan Fei's reply, Xia Ke showed a lonely expression on his face. She didn't know why. When she heard Duan Fei leaving, she suddenly felt a faint sense of loss. However, as an armed police officer, she soon adjusted. She smiled for the first time on her cold face.

"My name is Xia Ke, Xia of summer, lovely Ke. Nice to meet you!" She stretched out her right hand to Duan Fei, with a charming smile on her face.

"My name is Ling Wenwen. Thank you for saving me!" At the same time, Ling Wenwen also walked to Duan Fei with a red face and quietly looked at Duan Fei with clear and bright eyes.

Looking at their well intentioned faces, Duan Fei gradually felt a warm current in his heart.

It's human, it's human. In the end of the law era, Duan Fei almost forgot these terms. Unexpectedly, today, Duan Fei remembered them again.

"My name is Duan Fei!" Duan Fei stretched out his right hand and held it tightly with Xia Ke's hand. Then he turned around and ran away without looking back, and soon disappeared in the sight of everyone.

"Good bye!" Looking at Duan Fei's disappeared figure, Xia Ke muttered to himself, in a trance.