At the beginning, he was taken away by a female ghost

Perhaps because of the reputation of the night watchman, he didn't dare to do anything, and the work of the researcher has been proceeding smoothly.

A group of seven researchers and Sun Feiyu entered the ghost domain together.

This is only one of the researchers. In order to speed up the detection efficiency, a total of ten researcher teams jointly conduct exploration and research.

Sun Feiyu was the only escort in this team.

Although there was only one person, after learning about the situation in Huangquan, Sun Feiyu was not worried.

As long as there are no B-level ghosts, it is still easy for him to protect a group of people while killing C-level ghosts.

Moreover, Sun Feiyu felt that he could break through the B level after a period of practice.

Now he is much more powerful than ordinary C-level practitioners.

This A-level ghost domain is quite different from the two ghost domains that Sun Feiyu had entered before. After entering it, Sun Feiyu found that it was like entering a ghost.

There are all kinds of ghosts everywhere, which is absolutely unheard of in other places in the real world.

When the group first entered, they were attacked by ghosts.

But they are all low-level ghosts. Although they look terrifying, their strength is very low.

Sun Feiyu just slashed with a knife, and killed a group of ghosts surrounding him.

Everyone didn't stop at the entrance, because it hadn't reached the place where they wanted to conduct research and investigation.

The area outside this layer has been researched before, and they need to go to the center of Yuncheng City to conduct research.
In the current ghost domain state, the closer to the interior, the higher the concentration of ghost gas.

And what this phenomenon shows is the continuous appearance of ghosts.

The researchers wanted to figure out what happened to the change in the concentration of ghost gas, and how these ghosts were produced under such ghost gas.

After investigation and research, the researchers found that the ghosts here were all formed in the real world, and they suspected that they were formed by the dead people in Yuncheng.

Because they found that after entering here, it was like an empty city.

No sign of a soul, dead body or anything.

But simple ghosts killing people or absorbing yang energy will not cause such a situation, so the ghosts must be used for other purposes.

Sun Feiyu followed the researchers to go deeper into it, although Sun Feiyu could walk faster.

But he has to keep pace with the researchers, and they are moving slowly, collecting some data or collecting some things while moving forward.

While guarding, Sun Feiyu observed their actions to learn.

Sometimes Mr. Wu will give pointers from time to time.

After a while, they finally came to the center of Yuncheng, which is also the initial place where the ghost domain broke out.

The place where the A-level evil spirit appeared.

According to the information I learned, the A-level evil spirit first appeared in a small square in front of him, changed from a human form to a ghost quickly.

The ghost domain spread from his body in an instant and swept across Yuncheng, and then a large number of ordinary people died with the erosion of the ghost domain.

All the practitioners in Yuncheng showed up to resist, but they still couldn't stop it.

The night watchman asked for help, although the night watchman from Pingyang City also arrived but failed to kill the ghost.

Because I miscalculated the strength of the ghost, I thought it was a powerful B-level ghost, but I never thought it was an A-level ghost.

The ultimate price was that one night watchman was killed and one injured, and Yuncheng was completely wiped out.

Wu Huarong spread out the toolbox and unfolded the equipment operation technique to study this area.

Other researchers also assisted in recording information.

Sun Feiyu, on the other hand, was running the secret art of chasing spirits to monitor the movements of ghosts and clean up the surrounding ghosts.

Arriving at this place, a C-level ominous ghost has already appeared.

While keeping the researchers within a safe range, Sun Feiyu spared no effort to deal with the C-level ghosts.

The shadows of swords and swords condensed with yang energy are constantly flickering around, while the lights on the device are on and off, and the data is flowing.

After hunting and killing a C-level ominous ghost that seemed to be lost, another C-level ominous ghost that looked like a mountain crossed appeared.

There were sounds and lights of Sun Feiyu fighting with them, and many buildings around them collapsed.

The smoke and dust exploded and spread in the ghost domain.

And the researchers are still busy and busy conducting investigations and collecting information.

Sun Feiyu always kept them within a safe range, so it was much slower to deal with the C-level evil spirits.

After taking a elixir, Sun Feiyu's broken tooth knife was burning with blood.

The blade glow of the Mu Xuan Saber Technique cut out quickly in the air, forming a net shape, beheading the mountain-like C-level ominous ghost.

The nervous researchers didn't look up when they heard the violent battle noise.

The most important thing for them now is to quickly collect information here, they cannot deal with this powerful ghost.

If you can prevent them, you should continue to study. If you can't prevent them, you can't run away with their strength.

At this time, the yang energy that maintains them is also being consumed continuously. Every time they enter the ghost domain, they will not return until the remaining yang energy can support the consumption of returning.

Looking at the Yang Qi detection data on the equipment, it shows that they can stay here for at most 5 minutes before returning.

After Sun Feiyu received the system prompt after killing the ghosts, he thought he could take a break. After all, even among ghosts, he had never encountered two consecutive C-level ghosts attacking one after another.

Powerful ghosts seem to be territorial.

But just as Feiyu put down the Tooth Smashing Knife, a figure quickly fell from the sky and hit the ground heavily in an instant.

And it hit the small square that the researcher was investigating.

Immediately, several research instruments were shaken away and rolled aside, and some researchers who were weak and happened to be right next to the opponent's landing were instantly thrown away.

While Sun Feiyu hurriedly chased after him, he used the secret technique of chasing spirits.

The moment just now was too fast, so fast that he hadn't had time to use spells to investigate.

B-level ghost!
Sun Feiyu, who was chasing after him with a knife, suddenly had an extra talisman in his hand.

Without thinking about it, he threw it out and shouted at the researcher at the same time.

"retreat!"

After the initial panic, the researchers quickly picked up the research equipment they could pick up and ran outside.

No matter what level of ghosts appear, they cannot deal with them. The most important thing now is to bring the data back.

The B-level ghost landed on the ground and watched Sun Feiyu attack, and the thugs grabbed him.

However, Sun Feiyu was not caught, but an inexplicable thing was caught, and that thing exploded quickly in its hands.

Send out dazzling light, send out dazzling thunder.

Immediately, the ghost's arm was blown off, precisely because of the power of the thunder talisman.

But the Great Thunder Court Talisman, which can instantly wipe out C-level ghosts, is not enough to wipe out B-level ghosts.

Sun Feiyu quietly released a small C-level ghost from the system to protect the researchers, but he stayed alone.