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Yue Zhong lay at the top of the stairs like a lone wolf, quietly staring at the bottomless underground cave and waiting for five seconds. In those five seconds, no mutants had jumped out of the tunnel.

Yue Zhong took a deep breath, a strange light flashed in his eyes, and he launched a skill shadow step, and at the same time, with a flick of his hand, a small stone hit the entrance of the building like a bullet.

A crisp voice sounded, and the eight-headed mutant was attracted by the sound and turned his head to look in the direction from which the voice came.

Taking advantage of that moment, Yue Chong's figure flashed, and in a single breath, he jumped into the underground passage.

In the underground passage, moss was everywhere, and there was a rancid and fishy smell at the same time.

After Yue Zhong jumped into the underground passage, he ran like a ghost to the depths of the ground with all his might.

Through the long passage, Yue Zhong came to an extremely vast underground city.

That underground city was wider than any underground city that Yue Chong had ever seen, and in this underground city stood modern buildings dozens of meters high. In addition to the tall modern buildings, there are residential buildings, shops, schools, hospitals, and other buildings. It's just that all the buildings are a gray, dilapidated and decaying scene.

There was no light in the entire underground city, if it weren't for Yue Chong's ability to see darkly, he would not be able to see anything when he entered this underground city.

As soon as Yue Zhong appeared in the underground city, he saw dozens of mutants gathered together, led by a third-order mutant with crystal horns, walking towards this side.

Yue Chong's body flashed, and he fell behind a building like an arrow.

At this moment, a third-order mutant walked out of the building and appeared right in front of Yue Chong.

Yue Zhong had already prepared for the battle, and as soon as the third-order mutant appeared, the flame knife in his hand slashed at the body of the third-order mutant with a sonic boom, directly slashing the body of the third-order mutant, and blood splattered everywhere.

The vitality of the third-order mutant was extremely tenacious, even though it was cut in two by Yue Chong's sword, it did not die immediately, but used its upper body that had not yet been destroyed to let out an extremely terrible scream.

"Damn!!" Yue Zhong stepped forward to make up for it, and with one sword, he cut the head of the third-order mutant in half, and then directly took away the crystal horn on the head of the third-order mutant.

As soon as the third-order mutant died, a mass of life vitality poured into Yue Chong's body through the god and demon system again.

"Congratulations, you've received a Strength H Clarity Boost."

Streams of heat surged in Yue Chong's body, and a pleasant prompt sounded again.

Yue Zhong took a deep breath and launched the skill shadow step, the speed was fully open, and he rushed wildly in the direction guided by the imprint of the god and demon system in his hand without any scruples.

The screams of the third-order mutants caused a great sensation, and countless mutants rushed in this direction like ants in this underground city.

Yue Zhong had just charged forward less than three hundred meters, and with the sound of shattering glass, dozens of mutants broke out of the window and rushed towards him.

A strange light flashed in Yue Chong's eyes, and he pulled out the black tooth knife with a blade length of two meters, and instantly slashed out heavy sword shadows, and more than a dozen mutants who rushed towards him were easily twisted into a large number of corpses.

Yue Zhong stopped and slowed down, and dozens of mutants jumped over quickly, and almost at the same time, there were four third-order mutants who also jumped madly towards this side.

Once the four-headed third-order mutants were close to these monsters, Yue Zhong would only be killed by them.

At this moment of crisis, a large hole appeared in the void, and a streamer flew out of the big hole, falling outside Yue Chong's body and condensing into a bone Kai.

Yue Chong's feet burst out with two bone spurs, supporting him to jump onto a forty-meter-high building.

As soon as he jumped into the building, the bone spurs in his legs contracted instantly.

A fierce light flashed in the mutant's eyes, and it appeared in an instant at a speed comparable to the speed of sound, where Yue Zhong was standing, and it stretched out its big hand to grab the bone spurs that Yue Zhong was contracting.

At the same time, Yue turned his hand over, and the individual electromagnetic cannon appeared in his hand, he pulled the trigger below, and an electromagnetic cannon directly hit the head of the third-order mutant, directly blasting the head of the third-order mutant and splitting it.

A life vitality also disappeared into Yue Chong's body along the imprint of the god and demon system, but this time there was no sound of reinforcement.

As soon as the third-order mutant died, more than a dozen third-order mutants around him jumped towards this side like meteors. The three third-order mutants closest to Yue Zhong also jumped on top of the building, and quickly crawled up along the building like spiders.

This underground city is the lair of mutants, and although the main force of third-order mutants follows those fourth-order mutants to hunt down the masters of various races, there are still many third-order mutants who are rare to see in the outside world.

Yue Zhong looked at the third-order mutant who was surrounded from all directions, his gaze remained unchanged, and he jumped forward and jumped out of the building.

In mid-air, the Dark Wind Alloy Wings appeared, and a series of magic patterns appeared on the Dark Wind Alloy Wings, and a powerful hurricane suddenly appeared, pushing Yue Zhong to fly at a low altitude at the speed of sound.

Below, a mutant looked up at Yue Chong, who was flying at a low altitude at the speed of sound, and let out a sharp roar.

Balls of fireballs, bone spurs, ice picks, poisoned arrows and other long-range attacks shot up into the sky, shooting towards Yue Chong, who was manipulating the Wings of the Dark Wind, but they could only brush Yue Chong's afterimage.

The hit rate of long-range attacks is extremely low against objects flying at supersonic speeds, and most of those attacks are attacks launched by ordinary mutants, and their attack speed and attack power are far inferior to those of third-order mutants.

Just as Yue Zhong was galloping in the sky, a sharp whistle came from the ground.

More than a dozen mutants with flesh wings rose into the air one after another, flying towards Yue Zhong from behind, among those mutants, there were very few mutants who could fly meat wings, but there were still some. At the same time, only mutants above the second order can fly when they urge the meat wings.

It's just that the fastest speed of those mutants who can fly is only close to the speed of sound, and their speed is far from being comparable to Yue Chong, and they can only eat dust in the rear of Yue Chong.

"Is that there?"

Yue Zhong followed the guidance of the imprint of the god and demon system, and after flying for nearly a hundred kilometers, he saw an extremely large oval laboratory in the center of the city.

Yue Zhongzhong's joy landed like a meteor at the entrance of the laboratory.

The entrance to the laboratory had been destroyed, and Yue Zhong rushed in strides along the gap.

Soon after, six third-order mutants with flesh wings also flew to the entrance of this laboratory, and they circled around the laboratory, with a look of fear on their faces, not daring to approach this laboratory for half a minute.

In that laboratory, there were electronic instruments and transparent broken glass tubes that Yue Chong had barely seen before, except for the broken glass tubes, this laboratory was intact and had not been damaged in any way, but under the erosion of time, many instruments were shrouded in a thick layer of decoys.

Yue Zhong glanced around the laboratory, resisted his curiosity to search for the laboratory, and rushed straight in the direction guided by the imprint of the god and demon system.

In this laboratory, if you search carefully, you will definitely gain a lot, but Yue Zhong just wants to get the things that the God and Demon System Imprint guides him and leave immediately.

Walking through the corridor, Yue Zhong followed the summons of the god and demon system and finally entered a hall.

As soon as Yue Chong entered the hall, his face immediately turned pale, and he couldn't help but take a few steps back, and his eyes fell on the corner of the hall.

I saw that in that hall, there were all kinds of advanced electronic instruments everywhere, and in the center of that hall, the center of the countless electronic instruments was a spherical electronic instrument with a diameter of up to one meter. Twenty meters to the right of the sphere electronic device, a two-meter-tall male mutant with red crystal horns on his head, long silver hair, handsome to the level of evil, with a pair of blue eyes that can suck people's souls into the beauty, a pair of flashing silver metallic wings on his back, and a silver tail dragging a silver tail stood quietly in a transparent glass bottle and looked at Yue Zhong with a smile.

"It's so strong!! What a dangerous guy! Damn, there's such a dangerous guy here, why doesn't it go up there? Every cell in Yue Chong's body was frantically issuing warnings, just looking at the mutant with silver wings, he felt a terrifying pressure, as if the other party's one look could kill him, countless sweat flowed out of his back, wetting his clothes.

Even in the face of that fourth-order mutant, Yue Zhong was still confident that he could withstand the blow of that fourth-order mutant, but in the face of that silver mutant, that terrifying sense of danger told him that he couldn't even block the other party's blow.

"Hello! A friend with the imprint of the god and demon system. I'm Reddis! It's a pleasure to see you here, you don't have to be afraid, I was just like you hundreds of years ago, a human with the imprint of the god and demon system! What's your name, please? The silver handsome mutant smiled at Yue Chong and stretched out his right hand, the silver cuticle faded, revealing a god and demon system mark, but the god and demon system mark in his hand was extremely dim, like a gray line.

Yue Chong saw that Reddis had no intention of killing him, and said with a slight sigh of relief in his heart: "Hello, my name is Yue Chong." ”