"One group follows me, and the others follow their respective team leaders, ready to go at any time!" Gao Zaohua waved his big hand and walked towards the door.

A group of members, including Cui Liuliu, immediately followed.

After a while, a group of seven people passed through the elevator to the roof of the headquarters of the City Patrol Division, and as they passed through the corridor, each of them received a combat backpack from the equipment department.

"T8-style combat pack, you'll use it for six-six, right?" Goo asked Cui Liuliu while locking his backpack on his back.

"Yes, the Hunters' Guild has taught it." Cui Liuliu also skillfully put the backpack on his back and buckled the lock on his chest.

"That's good." Goo nodded and didn't say much.

In fact, the so-called T8 combat bag is just a pair of backpacks with a glider that is more than the conventional equipment combat pack, and it is usually used for airborne combat or combat in Fort City.

It doesn't mean much in the wilderness of the general terrain.

Cui Liuliu had only used it once or twice, and all of them had been tried out in the Hunters' Guild's standard training.

But that's enough.

A moment later, the group had arrived on the rooftop.

The headquarters building of the City Patrol Division is seven stories high, which is naturally nothing before the catastrophe.

But today, it's a tall building.

The tallest building in the entire [Star City] is only nine floors.

Standing on the rooftop, everyone can already see the bird mutations swept from the sky, densely packed, covering the sky and the sun!

However, not all of those bird mutant species attacked in the direction of the ground, most of them just skimmed over the [Star City], and only a small part was attracted by the city below and slowly landed towards the [Star City].

The reason why this was the case was mainly because their purpose was not to come to attack [Star City] in the first place, but it just happened that some of the beast tides were going to pass in this direction.

Centered on the area where the yellow mist appeared in the sky, the direction of the beast tide was in all directions.

There are only mutated species that will pass through [Star City] that are less than one-eighth of the total number of beast tides, and those who will really fight with [Star City] are only a small part of these eighths.

The others either swept directly through the air, or swept directly from both sides, and did not stay too much specifically to destroy [Star City], only the part that would collide with [Star City] head-on could not be stopped.

"Look, the show is about to start~~~" Gugu elbowed Cui Liuliu and motioned her to look at the sky.

After Gugu reminded him like this, not only Cui Liuliu, but even Du Ya looked at the sky with some curiosity.

Although he could guess that the major fortress cities of the human race would also have a strategy to deal with the threat from the air, he really didn't know what the method was, and this time he should be able to solve this puzzle.

Zila!!

At the same time that Du Ya was curious, a layer of royal blue power grid suddenly appeared in the sky above [Star City], instantly enveloping the sky over the city, directly sweeping away the first wave of bird mutant species that landed, and some were even directly burst by electricity!

For a while, the sky was filled with blood mist!

The bird mutant species are like dumplings, falling straight down from mid-air, and the scene is spectacular.

"Damn, black technology!"

Seeing this scene, Du Ya couldn't help but be a little surprised, and finally knew what the means of [Star City] to deal with the threat in the air were.

The planet he is on now was created based on the previous Blue Star, but because it is set in a future wasteland world, it is a little later than the timeline of Blue Star.

The year of the 'Havoc Day' was 2121, which is equivalent to the Blue Star a hundred years later.

Therefore, before the catastrophe in this world, the level of science and technology was actually higher than that of the Blue Star where Du Ya was located in his previous life, but because of that catastrophe, the technology tree was destroyed and a science and technology fault was formed.

Like this kind of power grid barrier all over the city, Du Ya had only seen it in science fiction films in his previous life.

But in this world, it's clearly a technology that's already mature.

"I see, the high-rise buildings where these important departments are located are the nodes that form the grid barrier......

Standing on the rooftop of the headquarters of the City Patrol Division, Du Ya could clearly see that the power grid barrier in the sky connected many nodes, and the headquarters building of the City Patrol Division under him was also one of them.

On the roof of these high-rise buildings, there is a purpose-built steel tower, and the power grid barrier is made up of one steel tower after another.

But obviously, this kind of power grid barrier must also be extremely energy-intensive, and it is impossible to open it for a long time in normal times, and it will only be opened for a period of time when encountering such a large-scale air threat.

"However, this level of interception, I'm afraid it still can't stop some troublesome guys......" Du Ya thought in a deep voice.

The power grid barrier in the sky is indeed an artifact to intercept the mutated species of birds.

The corpses of mutant species of birds, which are still falling like dumplings, are the best proof of this.

But this kind of power grid barrier is obviously impossible to stop all the mutant species that attack from the air, such as Du Ya himself, if he wants to break through this power grid barrier, he doesn't need to make much effort at all.

His 'Steel Electric Feather' itself can be immune to damage of the same attribute to a certain extent, and with a grid barrier of this magnitude, it can be said that there is no threat to him in the slightest for a short period of contact, he just needs to rush in as fast as possible.

If it is replaced by a second knife, it is naturally impossible to be as easy as him, but at most, he can be forced in with a slight injury.

In general, this layer of power grid barrier is estimated to be mainly able to drop zero-order and low-order mutant species in seconds, and can only play some hindering role for most middle-order mutant species.

Otherwise, the people in the logistics department would not have to be so ready to go to various areas to support at any time, and it must be because they know that this power grid barrier cannot stop some powerful mutant species, so they will prepare in advance.

Sure enough, not long after Du Ya made this judgment, a new change had already appeared in the sky.

In an area relatively close to Du Ya's side, there was an eagle with a cyan body, and as soon as the power grid barrier appeared, it slammed its wings at the power grid barrier!

In the next moment, two huge cyan wind blades slashed towards the power grid barrier beneath it!

Rumble!!!

After a huge explosion, the place where it was slashed by the cyan wind blade was instantly blasted open a hollow, and the cyan eagle also took this opportunity to directly pass through the power grid barrier!

Not only it, but some of the bird mutant species that were closer to it also rushed in while the cavity was not completely closed.

Du Ya also saw that in the distance, there was a kangaroo almost three meters high, which fell from the sky and struck directly at the power grid barrier!

Its blow was even more terrifying than the cyan eagle's wind blade, and it made a blank space in a square area appear in that piece of power grid barrier, and there was no sign of closing for a long time.

"Oh no, the barrier over there should be broken, and it will take time to recover...... Follow me! "Gao Zaohua also noticed over there.

With a direct dash, he jumped from the roof of the headquarters building of the City Patrol Division to the roof of a five-story building next door.

The difference in height between the two floors was like flat ground under his feet.