Longevity starts with learning

To the south of the Changsheng Mountain Gate is the rolling hilly area. The hilly area spans from east to west and stretches for hundreds of thousands of miles to the south.

Nowadays, the nature of the densely populated cities and towns in this vast hilly area has naturally completely changed.

Either it has turned into a logistics supply transfer place after another, or it has turned into a fortress checkpoint, killing the fish that slipped through the front line battlefield.

And at the southernmost end of this vast hilly area, the land that was once the heart of the Chu Immortal World has now become a de facto frontier land.

And this borderland is not a peaceful borderland, but a place of endless fighting!

As early as the beginning of the demon catastrophe, the Changsheng Sect, which had been prepared, was ready to give up most of the Chu Immortal World.

After ordering the Changsheng Sect disciples from all over the Great Chu Immortal Realm to return to the mountain gate, a temporary defense line was set up in the waters of East Lake.

After East Lake, a second line of defense was established based on the Cangwu River in the central part of Dachu.

The edge of this hilly area is the third line of defense and the most important logistical support.

However, with the strength of the Changsheng Sect that was severely damaged at that time, it was ultimately powerless to face this terrifying demon catastrophe.

In just a few years, the two lines of defense in Donghu and Cangwu were broken down one after another.

But fortunately, the buffer time of these few years has also allowed the Changsheng Sect to be reborn from the brink of death.

After all, no matter how terrifying the demon catastrophe is, it is still within the boundaries of the world. At the top of the world of immortality is the Yuanying Great Monk, the fourth-level perfect demon.

Demons corrode and evolve, and the peak of power only lies in the fourth level of perfection.

Although the demonic catastrophe happened suddenly, it could not be perfect, nor could it wipe out all the Tiannan Xiuxian world. After all, there were still many "fish that slipped through the net".

After all, the Tiannan Immortal Realm is so vast!

Even if the world of monsters and demons descends from the sky, there will definitely be a lot of survivors, especially middle- and high-level monks. As long as they are not corroded and evolved, and they focus on hiding and escaping, the possibility of escaping is definitely not small.

The Changsheng Sect has been resisting for several years and has been defeated one after another. However, with the help of some remaining information systems, it has already informed the various places in the Dachu Immortal Cultivation World.

With the buffer time of several years, the Changsheng Sect also integrated many monks who fled from all over the Tiannan Immortal Realm, greatly restoring the vitality of the Changsheng Sect that was severely damaged by the demon catastrophe.

Coupled with the arrival of support from several large tribes in Xingluo Grassland, after being defeated to the third hilly defense line, the Changsheng Sect was like a nail, nailed to the edge of the hilly area.

After many years of operation and massive resources accumulation, this hilly defense line seems to have become more and more perfect.

The entire defense line formed an arc and surrounded the edge of this hilly area. With nine important cities as the core and supplemented by densely populated acropolis camps, this defense line could be called an iron wall.

In the center of this arc-shaped defense line is Zhenbei City, the largest area among the nine major cities.

Zhenbei City has jurisdiction over thirty acropolis, and each acropolis has jurisdiction over more than fifty forts.

The Acropolis has Zhenbei City as its core and is densely surrounded by arcs. Each fortress under the jurisdiction of the Acropolis also has the Acropolis as its core and is densely surrounded by stars.

It was like a dragnet covering the hilly area.

Even if the demon breaks through one of the cities or fortresses, it will not affect the overall situation.

The north city of this town also became the core of this hilly defense line because the Changsheng Sect Master sat here all year round and controlled all directions.

With the mighty offensive power of the swordsmanship of Yuanying, the leader of the Immortal Sect, Zhenbei City has almost become a forbidden place for demons in the past few years. Countless demons have fallen on the defense line of Zhenbei City.

Of course, there were countless monks who also fell into this bloody fight with no end in sight.

It's midsummer, at noon.

It was supposed to be a time when the fire was strong and all the evil spirits were retreating, but outside the defense line of the north city of this town, it was difficult to see the light of day.

The entire sky seemed to be infected by blood. The thick smell of blood floated between the heaven and the earth, and the brown-red blood mist filled the sky. Even though the cities and fortresses sent a large number of monks to cast spells again and again, and even set up formations to disperse the blood, the effect was There are also very few.

The sky is dark and stained with blood...it's hard to see the sky!

In Zhenbei City, mixed with the escaping lights leaving the city, several escaping lights of different colors rose into the sky, and it was difficult to see any difference.

But these escaping lights are different from the monks who go to various cities and fortresses, or patrol and guard. After all, in this line of defense, the core of everything is defense.

If there is no special need, they will not leave the defense line and go outside the defense line.

And these rays of escaping light came out from the Zhenbei City and went straight south, crossing several cities and castles until they reached the edge of the defense line before falling from the sky.

Two rays of light dissipated after landing, and four people appeared one after another.

"Junior brother, you are a master of formations, so you should be able to see the clues, right?"

The leader of the Changsheng Sect looked at the darkness outside the defense line and turned to look at Chu Mu.

Chu Mu didn't respond, but his eyebrows became more solemn.

Within the defense line, although there was blood in the sky, the sun was still shining brightly, and one could barely catch a glimpse of the sky.

Although the ground was stained with blood, there was still some life left.

Outside the defense line, it's completely different.

The sky was dark, with brownish-red clouds covering the sky and no sunlight falling.

On the ground, there was even more dead silence. Apart from the wandering demons, there was no sign of life. Even the soil and rocks were all dead brown-red.

Looking around, the thick evil and chaos seemed to fill the world outside the defense line. Compared with the inside of the defense line, it was completely different from the inside of the defense line!

But the problem is...

The other side is also the world of immortal cultivation...

It also belongs to... the territory of the Great Chu...

"How could it be so fast?"

Chu Mu frowned, and he couldn't help but have a bad premonition in his heart.

When he noticed the clues from outside the world, he immediately reported it to the leader of the Changsheng Sect. Then, he closed himself for less than half a year, and used the scroll of magic secrets to successfully transform a demon from outside the domain into the resources for him to break through the bottleneck of the middle stage of the Nascent Soul.

Although it led to many problems such as unstable foundation, he finally succeeded in breaking through to the middle stage of Yuanying, and in this world of demonic catastrophe, he also had a little more self-protection power...

But as soon as he came out of retreat and lifted the formation ban, he heard several voice transmissions from the Changsheng Sect Master in front of him.

Before he understood the specific situation, he hurriedly passed through the teleportation array in Jizhou City, transferred several times, and arrived at Zhenbei City.

As soon as he left the teleportation array in Zhenbei City, he was led here by the Changsheng Sect Master. These two completely different worlds...

...