This severe pain came and went quickly. Just when Duan Fei's consciousness was about to fall into darkness, the pain suddenly retreated like a tide, and his consciousness returned to his body.

At this moment, the scene in front of Duan Fei has changed. What filled his whole vision was countless colorful lights. In these complex and intertwined lights, he saw a small tree as transparent as crystal.

"What is this?" Duan Fei looked at the sapling floating in front of him with some doubts. He didn't know what was going on for a moment.

However, at this moment, there was a sharp pain in his brain, and then countless amounts of information began to flow into his mind.

From these pieces of information, he knew that the transparent sapling in front of him was called "evolutionary tree".

Duan Fei has not found any relevant information about the origin of the evolutionary tree, but only knows that it is the core of a very advanced civilization system

Just when he was puzzled, the evolutionary tree suddenly emitted a white light to wrap him, and then a cold electronic sound suddenly sounded in his mind:

"The evolution system has started, and the main project is started!"

At the moment when the voice sounded, Duan Fei felt that his body had been exposed to the air as if the whole person had been seen through in an instant since it was shrouded in the white light.

Before long, only a "drop" sound was heard, and a series of electronic sounds continued to ring out.

"Genetic chains are matching!"

"After gene matching, enter it into the system!"

"Over!"

After the sound disappeared, Duan Fei suddenly had many more things in his mind. When he looked at the pure white evolutionary tree in front of him again, he suddenly felt connected by blood in his heart. After sorting out the messy information in the brain, we finally have a certain understanding of the role of the evolutionary tree in front of us.

It turns out that the function of this evolutionary tree controlled evolutionary system is to help the owner continuously improve his genes and evolve. Of course, if you want to evolve, it also needs a price, and this price is the point of evolution.

There are many ways to get evolutionary points, but at present, there is only one way to get evolutionary points provided by the evolutionary tree, that is to kill a walking corpse. Every time he kills a low-level walking corpse, he can get some evolutionary points. Using these evolutionary points, he can choose to strengthen his body, fighting skills, survival skills, exploration ability and so on.

The initial ability is not strong, but can only strengthen their own physique and strength, but this is enough for Duan Fei.

At the beginning of the doomsday, basically, there were some low-level walking corpses without intelligence, which had no threat to Duan Fei at all. In addition, with the evolution point, they can continuously strengthen their abilities in all aspects of the body, and the risk of survival has been reduced to the lowest.

However, after seven days, some walking corpses and monsters will mutate. These mutated walking corpses and monsters will produce weak wisdom, smarter, more powerful, and even special abilities. However, at that time, a small number of humans will awaken their powers and embark on the path of evolution. At that time, his ability to evolve the tree will change to a new level.

At this time, the cold electronic voice sounded again: "turn on the evolution system consumption, one evolution point! The rest, two evolution points! Whether to choose to use it."

After hearing this voice, Duan Fei chose "yes" without hesitation. When the end came, he had a chance to be strong and save his life.

Then, Duan Fei's eyes appeared two options, one is to strengthen strength, and the other is to explore ability. Both capability upgrades require two points of evolution. After thinking for a while, he decided to strengthen his strength. After rebirth, although Duan Fei retained his previous combat skills and experience, his body is still too weak for him, and the improvement of strength is the most important.

"Double the power increase, consume two points of evolution point, remaining, zero point, system shutdown!" At the moment when he chose to determine, the electronic sound suddenly sounded, and then the scene in front of him quickly became blurred. In a daze, it seemed that there was a huge force to withdraw Duan Fei from the system. The next moment, the consciousness returned to his body again.

……

Duan Fei slowly opened his eyes, and the familiar scene appeared in front of him again. He found himself lying in bed at the moment. Duan Xinyue sat aside with his head against his chest. He seemed to have fallen asleep.

Duan Fei gently moved his body and moved very carefully, but he woke Duan Xinyue up.

Duan Xinyue suddenly raised her head. When she saw that Duan Fei had sat up, she immediately showed a happy smile on her face.

"Brother, you finally woke up. I was almost scared to death by you!" Duan Xinyue hammered Duan Fei's chest, and the smile on his face looked heartless.

However, Duan Fei noticed her red eyes and knew that she had cried when he was unconscious. Seeing her like this, Duan Fei felt a pain in his heart, stretched out his right hand and directly hugged Duan Xinyue in his arms.

Duan Fei's action startled her, but Duan Xinyue didn't struggle. The whole person completely fell on his chest, quiet like a kitten.

"I was just too tired to sleep. It's okay. Don't worry, I won't leave you!" Duan Fei touched her head and comforted her.

"Yes!" Duan Xinyue nodded, looked up and asked, "what shall we do now? These food are enough for us to support for a period of time. Shall we stay here and wait for the rescue of the army?"

Duan Fei looked at her and shook his head slowly.

When the end came, the whole world had fallen into chaos. Although the army is an extremely huge force for mankind in the late days, at this time, the army has also fallen into chaos and has no time to take care of them. When the army stabilized, it was seven days later, and the world was undergoing earth shaking changes.

"The army has no time to care about us. Now we can only rely on ourselves!" Duan Fei stared into her eyes and said, "but you don't have to worry. As long as I'm here, we can live. I won't hurt you!"

"I believe you!" Duan Xinyue looked at Duan Fei quietly with glittering eyes.

"Go to bed first!" Looking at Duan Xinyue's haggard face, Duan Fei sighed, took out a quilt from the room and gently covered her..

"I can't sleep!" Duan Xinyue shook his head.

She thinks her psychological quality is very strong. No cockroaches or mice can scare her. Her independent life since childhood makes her feel that she can face any difficulties with a smile.

But now it's different. It's the end of the world.

She shuddered at the thought that her familiar world had become history and that she would have to fight with those terrible walking corpses in the future.

When normal people encounter this situation, let alone sleep, I'm afraid they are at a loss at this moment and are basically about to collapse. Duan Xinyue can keep calm, which is very good.

"Go to sleep. If you want to live, you must learn how to rest and save your physical strength!" Duan Fei sighed and comforted.

After hearing Duan Fei's words, Duan Xinyue was silent for a moment and nodded.

"You must stay by my side. Don't leave half a step!" Duan Xinyue held my hand tightly, and her eyes were full of tension.

"Don't worry, I won't go!" Duan Fei patted her hand and said.

Hearing Duan Fei's words, Duan Xinyue seemed to find spiritual sustenance and smiled. Only then did she slowly climb to the bed, cover the quilt and go to sleep.

Duan Fei sat quietly beside her until she fell asleep, then slowly got up and came to the window.

At this time, it was already three o'clock in the morning, and a hazy light had begun to appear on the horizon. The air was filled with a strong smell of blood and decay.

Duan Fei quietly looked at the streets and community outside. Looking around, there were large tracts of blood in all parts of the Community streets, like blooming roses. There are still several walking corpses wandering back and forth in the street.

The walking corpses of later generations are extremely powerful. They not only have strong strength and various special abilities, but also their intelligence is frightening. These walking corpses will act in an organized way, know tricks and design traps. It's impossible to prevent them.

But the walking corpses at the beginning of the end are much weaker. They have no wisdom. The only thing left in their minds is the desire to eat. Except that their strength and speed are a little stronger than ordinary people, they are no different from wild animals.

At this stage of walking corpses, the virus is only blindly invading their bodies. Walking corpses like this suffer devastating damage to most functions of the body.

They are afraid of the sun. The ultraviolet rays in the sun will weaken their eyesight and slow down their movements. Therefore, during the day, walking corpses rarely move outside, and at this time, they are the weakest.

For humans, after becoming walking corpses, their noumenon has actually died. They can act because the virus controls their brain nerve centers.

Therefore, if you want to kill the walking corpse, blowing your head is the most concise and effective way.

But they are particularly sensitive to taste and sound. So when you are outside, you must be careful to ensure that you will not have any small wounds. Because as long as there is a smell of blood, it may attract them.

Although one or two walking corpses may be able to deal with, ten, a hundred, a thousand, without the awakening power, the absolute number is suppressed, and no one can survive at all.

Of course, for Duan Fei, when he is familiar with their weaknesses, these low-level walking corpses in the early stage are not all, but just one evolution point after another.

At present, the most important thing for Duan Fei is to strengthen himself as much as possible in this short seven days. After seven days, if he doesn't have the ability to awaken, he must hunt those mutant walking corpses to obtain the gene nucleus in their bodies and become the awakener.

At that time, he must have the power to compete with the mutant walking corpse, so in the seven days before the beginning of evolution, he must do everything possible to strengthen himself.

God created the world in seven days; The virus took seven days to make all the creatures in the world complete a complete evolution and enter a new era.

On the evening of December 21, 2016, the doomsday broke out!

In the early morning of December 22, 2016, Duan Fei stood over the ruins of the city, looked down at the land and quietly squeezed his fist.