The black bag contained a total of twenty corpse cores, each of which was pitch black and transparent, but there was a faint hint of luster.

According to Wuji's explanation, the corpse core is hidden in the heart of the zombie, but not all zombies have a corpse core, and twenty corpse cores can appear in a hundred zombies, which is definitely a big bargain.

As for what the corpse core is used for, it has a lot to do with Goofy's next body enhancement.

Under Goofy's strange gaze, Wu Ji took out a small tray of large glass containers, and then put the corpse cores into the container one by one.

"What are you?"

"Nurture!"

Wu Ji stood in front of the table and continued: "It's the early stage of the end of the world, this is the most primitive cultivation method of the corpse core, and it is also what you taught me, young master. ”

Gao Fei, who was standing in place, scratched his nose, in addition to finding his parents as soon as possible, his thoughts at this time were more about becoming stronger as soon as possible, fusing with the crystal nucleus, and recovering his future memories.

While the two were talking, the corpse cores in the container suddenly burst open one by one after they collided together, and the room was suddenly filled with the smell of rancid evil, and the twenty corpse cores turned into a puddle of black water.

Just as Goofy was wondering, the black water suddenly changed, slowly condensing into hundreds of particles about the size of the tip of a ballpoint pen.

Hundreds of tiny particles are converging and fusing ...

Until all the particles were fused, a dark green light flashed in the dim room, and a finger-like dark green bead lay silently in the glass container.

"Young Master, the first-level corpse nucleus, the fusion has been successful. ”

In the future, there will be many ways to cultivate corpse nuclei, and this is the first time that the original cultivation is endless. He couldn't help but smack his lips as he looked at the nucleus in the vessel, and a look of surprise appeared on his face.

Gao Fei, who had not yet fused with his crystal nucleus, didn't think it was surprising, in his eyes, it was just that the black corpse core had changed color.

However, in the endless explanations that followed, he realized how naïve and ridiculous his ideas were.

"Young Master, in the future, the corpse core will be divided into ten levels, and each level will determine the quality of the corpse core by its color. ”

"For example, the dark green corpse core we see now is the middle quality of the first-level corpse core, and among the first-level corpse cores, light green is low quality, dark green is medium quality, and dark green is high quality. ”

"As for the purpose of the nucleus, it can help us humans change the sequencing and division of genes. To put it simply, it is to help human beings to strengthen their evolution. ”

"Evolved human abbreviation, Evolver!"

Gao Fei was stunned when he heard this, he didn't expect that a small corpse core could change human beings at all, and he could imagine what kind of existence the world would be in the future...

After the first-level corpse nucleus was fused, it was endless and did not directly let Gao Fei subdue.

The specific reason is that the current first-level corpse nucleus is not enough to change Gao Fei to become an evolutionary.

After a night's rest and medication, Goofy's body did not show signs of fatigue, but his whole body was full of strength and energy, and he was even more looking forward to the battle with the zombies.

Although the zombies on the street in the back alley of the rental house yesterday have been wiped out by Wu Jue and Gao Fei, after a night, dozens of zombies have been regathered on the street.

The zombies on the streets are constantly grabbing food, and the food in their hands is the zombies who died yesterday.

Gao Fei, who was standing behind the iron gate, couldn't help but feel a chill when he saw this scene, but he didn't expect that the inhuman zombies would not even let go of the corpses of their own kind.

Creak!

The screeching of iron doors filled the streets.

The zombies who were eating stopped their movements with cloudy eyes, they raised their heads and sniffed vigorously in the air, and in the blink of an eye, they rushed wildly towards Goofy's location.

Facing the siege of dozens of zombies, Goofy's hands trembled again.

However, this time, it was not because he was afraid of zombies, but because of the excitement in his heart that could not be concealed, the incomparable desire for battle, and the rapid surge of adrenaline hormones when the battle came, so that his hands and even his body trembled slightly.

A bloodthirsty smile slowly floated.

A long knife glittering with cold light clenched into the palm of his hand.

A cold and seeping killing intent suddenly erupted.

The crystal nucleus worn in Goofy's clothes emitted a dazzling purple light, and a stream of heat emanated from the crystal nucleus and flowed throughout his body, and a violent killing intent arose.

On the street, a figure passed quickly, and in a moment, the figure rushed into the zombie group, and the sword light was extremely dazzling in the black zombie group.

With a knife, the zombie's head falls.

Two knives, three zombies completely dead.

Three knives, surrounded by high-flying zombies, none of them survived.

An hour later, the streets in the back alleys of the rental house, as well as the streets in front of the main entrance, were filled with blood, and the broken arms were scattered like gravel all around.

Mountains of corpses and rivers of blood.

It is not an exaggeration to use this sentence to describe the scene before and after the rental house at this moment.

"Bang dang!"

In front of the rental building, there was a sound of iron hitting the ground, and Goofy, like a bloody man, stood in front of the door gasping for air.

His eyes were cold.

His appearance was red with blood, like a demon crawling out of hell.

In the end, seeing the appearance of Wu Yong, Gao Fei, who was already lacking in physical strength, couldn't hold on any longer, and his eyes went black and he fell to the ground.

....

After five days of fighting, Goofy's intensive training finally came to an end.

"Young Master, your current muscle density has completely broken through the limits of human beings, and all the functions of your body have also been greatly improved. ”

"Indeed, since two days ago, although the zombies on the streets can attack me at close range, they are no longer afraid of the damage they have caused me. ”

It is not surprising that he can help Goofy break through his physical limits again in a short period of time.

Because Goofy is the king, the king of killing.

Born of battle, born of endless slaughter.

Gao Fei looked at the muscles in his chest and nodded in satisfaction, and then asked Wuji, "That's right, Wuji." Since corpse cores are all ranked, what about the evolutionaries you are talking about, are there any clear levels?"

"Yes!"

Wu Ji said as he put the collected corpse core into the vessel, "There are D-class, C-class, B-class, A-class, S-class, SS-class, and SSS-class. The D-class is the weakest evolutionary, and if it goes up in turn, it will be the existence of a hegemon when it reaches the S-class. ”

Gao Fei nodded thoughtfully, looked at Wu Jie, who was full of seriousness, and asked, "What about you, what level of evolutionary are you now?"

"In the future, I'm S-class, but now I'm just an A-class evolutionary. ”

Wuji shook his head bitterly and smiled, sighed and said, "But in the current apocalypse, as long as people haven't discovered the secret of the corpse core, the A-class is definitely an invincible existence." And young master, although you have not become an evolutionary, your physical strength has reached the peak of C-level. In its current form, it is not enough to affect the safety of the two of us. ”

While the two were talking, the corpse nucleus in the vessel was also successfully fused at the same time, and a corpse core emitting a pale green light lay quietly in the container.

After seeing the successful fusion of corpse cores, Wu Ji took out the nine first-level corpse cores that he had cultivated some time ago and put them into the container.

There are ten first-level corpse cores, of which there are four low-level corpse cores, four intermediate corpse cores, and two high-level corpse cores.

When all ten corpse cores were placed in the container, they did not turn into a puddle of black water as before, but were devoured one by one, and then fused.

It wasn't until the ten corpse nuclei turned into one corpse core that black shoots suddenly emerged from the corpse nuclei in the vessel, and then grew rapidly at the speed of the naked eye until they became black branches of about five centimeters.

Just when Goofy was amazed by the scene in front of him, the black seedlings changed again.

A flower bone emerges from the tip of the seedling, and the flower is slowly blooming...

A minute has passed.

The rental house was shrouded in blue light, and an aqua blue corpse core bloomed dazzlingly in the black flowers.

"This, this is a fourth-level corpse core! ”

Wu Ji stood in place with a shocked face, gently held the fourth-level corpse core in his hand, and put it in front of Gao Fei, "Young master, take the corpse core." ”

Gao Fei, who took the corpse core, didn't think much about it, and threw the corpse core directly into his mouth.

The nucleus instantly turns into liquid after entering the body, and flows down the throat to the body.

Suddenly, Gao Fei's eyes widened violently, his hands kept tearing the clothes on his body, and a heart-rending pain spread throughout his body.

At this moment, he only felt that the blood in his body seemed to be burning, his internal organs seemed to be cut by a knife, and the bones in his body seemed to be gnawed by countless ants.

Goofy's body was flushed, and drops of blood kept popping up along his pores.

He only felt that he was worse off than dead now.

"Young master, hold on. Only by passing this level will you be able to become an Evolver and truly merge with the Crystal Nucleus. ”

Wu Ji knew very well how powerful the power of the fourth-level mid-grade corpse core was, and in the future end-times, a fourth-level corpse core would be enough to cause a lot of strife.

Suddenly, the candles in the room were extinguished, the wind whistled from the window, and the purple light of the crystal nucleus on Goofy's chest suddenly skyrocketed.

Just as Goofy felt that his body was about to explode, an even more powerful and domineering force came from his chest.

"Roar!

The zombies downstairs also roared wildly at the same time, and the sound was endless, resounding throughout the city.

The roar beneath the rental house continued to approach the fifth floor, and the frenzied influx of zombies made the entire building shake as if it were an earthquake.

Wu Jie, who was guarding Gao Fei's side, suddenly tightened his gaze, and after secretly saying "not good" in his heart, he picked up the black gold long knife beside him and broke out of the door.

At this moment, a burst of red light suddenly appeared from the bottomless cracks in each street, and monsters like giant praying mantis surged out of the cracks.

Wu Jie, who had just walked out of the building after clearing the zombies, was stunned when he saw the monster rushing out of the cracks in the ground.

"Daredevil!"

Immediately turned around, holding the black gold knife in his hand, and quickly ran upstairs.

Just as he was about to turn around, the five night demons had already swooped towards the room where Goofy was, and Wu Yong's face changed drastically.

"Boom!"

A loud noise suddenly came from the location on the fifth floor, and the corpses of the two night demons suddenly fell from the sky.

A figure jumped steadily to the ground, followed by the corpses of three night demons, each with thick black smoke rising from their bodies.

Goofy stood in place naked, with a faint flash of thunder floating on his body, and a powerful killing intent spread throughout the street.

He turned his face sideways and smiled coldly, his palm made a gesture of holding the knife in mid-air, and the black gold long knife beside Wu Ji suddenly flew straight away and was held in his hand.

And Wu Jie, who was standing in place, saw that smile and felt the murderous aura like a substance, his heart boiled, and he knelt heavily on one knee.

"Welcome back, King!"