Under the crimson sky, there was a charred and blackened remnant of a broken wall. Countless fragments of metal debris were piled up into towering mountains of garbage, strewn with broken flying swords.

This is the No. 3 base of the No. 28 Exotic Battlefield in the Southeast Star Domain of the Xiuzhen Federation. A week ago, I just experienced a huge beast tide. Hundreds of millions of demon beasts rushed out of the Blood Demon Realm, engulfing the huge war fortress that had dominated this red plain for hundreds of years in just one day.

Tens of thousands of cultivators and nearly a million armies were slaughtered, and millions of crystal mechs and countless magic weapons of war were destroyed to pieces. The once tall and sturdy metal buildings have been reduced to broken ruins, and the metal remains of the mechs have piled up into one magic weapon graveyard after another.

Many monsters have left this metal graveyard to besiege several other bases and strongholds established by humans in this exotic battlefield, but there are still a large number of low-level monsters in this ruin, looking for humans who may survive!

This is the 3,000-year Xiuzhen calendar, after the long period of ancient Xiuzhen and the arduous interstellar colonization period, after three revolutions in Xiuzhen science and technology, mankind has finally entered the era of major Xiuzhen technology!

In this era, there is no longer only one cultivator as in ancient times, and the increasingly widely used cultivation technology has gradually prospered and prospered, occupying all aspects of human life.

As large as the spirit network system that can cover the entire True Spirit Realm, and as small as a nanomachine qì person with a simple spirit pattern array engraved with it, all reveal the outstanding results of human cultivation technology.

A variety of weapons such as starships, space fortress cannons, psionic mechas, and unmanned flying swords are widely used in military warfare; Crystal guided trains, civil shuttles, high-efficiency medical cabins, crystal brain machines and other transportation, medical treatment, and learning types of magic weapons have entered thousands of households and become essential tools for human daily work, learning, and home life!

However, the crisis that has been threatening humanity since the era of great interstellar colonization has not disappeared.

They are mainly demons from the Blood Demon Realm and demons from the Fire Demon Realm

The period of great interstellar colonization was a long and difficult period in human history.

40,000 years ago, mankind was still in the heyday of ancient cultivation, and countless geniuses and strong people rose, creating a glorious era of "many babies like dogs, turning into gods and walking all over the ground", and the ancient cultivation civilization developed to its peak during that period.

At that time, human cultivators were still confined to a cultivation planet in the True Spirit Realm called Purple Emblem Star. With the emergence of more and more cultivators, they have developed their physical potential to the extreme, and while their lifespans are getting longer and longer, their thirst for cultivation resources has also become endless.

People's desires are infinite, but the cultivation resources of the entire Purple Emblem Star are limited. With an insatiable desire to pursue limited resources, various sects began to wage wars for resources.

A war that swept through the entire cultivation realm has begun!

During this period of civil war that lasted for 10,000 years, countless strong people fell one after another, and the powerful people who were high in the past turned into gods and old monsters, and their sects disappeared in the long river of history one after another.

The war is difficult to maintain, but the light has not yet appeared. The resources of the Purple Emblem Star were completely depleted in the 10,000-year-long civil war.

Faced with the depletion of cultivation resources, the sect, which was quite helpless, began to set its sights on the endless starry sky. With the help of those Yuanying powerhouses and god-turning old monsters, they built a powerful teleportation array, and with the disciples of the sect, they began to explore the unknown starry sky.

Human society has officially transitioned from the civil war period to the era of great interstellar colonization!

When some of the cultivators who had left the Purple Emblem Star found the first planet suitable for cultivation and sent the news back, the human race realized that the real opportunity was in this unknown starry sky.

Then, the human cultivators began to find ways to cross the starry sky and explore unknown planets, and more resource stars were discovered one after another.

After five thousand years of frenzied colonization and expansion, human cultivators have crossed thousands of galaxies and found hundreds of thousands of resource planets suitable for cultivation. Human beings connect all the cultivation planets, collectively known as the True Spirit Realm!

Without the limitation of resources, the powerful cultivators showed signs of blowouts again. But humanity is still a mess. In order to compete for the Xiuzhen Star, there will occasionally be friction and war.

And history is often inadvertently driven by a little person!

A cultivator who couldn't remember his name, when he was exploring the starry sky, inadvertently opened a certain spatial node that communicated with the blood demon realm, causing countless powerful demon beasts to rush into the true spirit realm and wreak havoc on the human cultivation planet.

In the face of the powerful demon race, the accumulation of human heritage can only barely cope with it, but sometimes it is unparalleled, and the disaster is not alone. Decades after the discovery of the Blood Demon Realm, another sect also opened the Great Thousand Planes of the Fire Demon Realm, and the powerful demon clan also began to invade the True Spirit Realm and slaughter human beings together with the demon clan, and a large number of sects once again ushered in the catastrophe of destruction.

For thousands of years since then, human beings have fought their own battles, and under the attack of these powerful enemies, one Xiuzhen planet after another has been occupied, and countless sects that have survived civil wars and interstellar exploration have also disappeared in the flames of war.

As more and more cultivation planets fell and a large number of cultivators fell, humanity gradually realized the importance of unity. Finally, under the leadership of the high-level of the eighteen super sects, the surviving human cultivation sects gathered on an unknown cultivation planet and held a meeting that lasted for more than three months.

In the meeting, all the sects abandoned the prejudices of the past, formed a sect mutual aid alliance, established the Xiuzhen federal system, elected the federal president by fair election, and the high-level members of each sect will serve as the initial parliamentarians, have the power to supervise legislation, and jointly signed the first constitution of the federation, form a federal army, and jointly fight against the enemies of mankind!

The meeting lasted a total of 100 days, hence the name "100-day meeting". This is a major turning point in the human race's resistance against the demon invaders.

The establishment of the Xiuzhen Federation finally gave humans a chance to breathe under the strong attacks of the demon race and the demon race. However, the heavy task of dealing with the demon clan and the demon clan still only relies on those powerful cultivators.

In order to improve the combat effectiveness of the army, and also to allow more civilians and weak cultivators to fight against the demon clan with the power of magic weapons. The first president of the federation signed a document to lead the refining sect, which is famous for refining magic weapons, and gathered the refiners and array mages of the entire federation to start the research on the innovation of magic weapons. With the goal of making more magic weapons that are convenient, easy to use, powerful, and capable of mass production, the research began the first vigorous scientific and technological revolution in Xiuzhen.

This scientific and technological revolution is also known as the magic weapon revolution, which lasted for thousands of years, and all kinds of magic weapons with simple control such as spirit guns, spar grenades, spiritual shields, flying sword arrays, and chariot shuttles began to appear in human society. Let some ordinary humans and low-level cultivators also be able to use these magic weapons to fight against demons and demons.

The magic weapon revolution has made human beings no longer in a passive disadvantageous position in the struggle against demons and demons. Thousands of years later, a Dharma Circle Master named Ou Yezi observed that human monks used the method of spiritual qi to compress and condense the spar and the spiritual energy that was free in the air through the magic circle, and finally transformed it into pure solid spiritual energy.

Energy materialization completely solves the problem of insufficient energy supply of some large driving runes in magic weapons, so that many large magic weapon machines that could not be manufactured before due to lack of power, such as starships, giant chariots, heavy fortress cannons, manually controlled mechas, etc., began to appear one after another.

In the thousands of years since, with the development and utilization of more energy, human cultivation technology has developed by leaps and bounds, and it has gradually become dominant in the fight against natural enemies such as demons and demons.

The solidification of energy is also another turning point in Xiuzhen technology, which is called the second Xiuzhen technology revolution - energy revolution!

After the energy revolution, human cultivation technology is changing with each passing day, and after hundreds of years, human scientific researchers have discovered a semi-conductive crystal, which can conduct spiritual thoughts and store memories like the neurons of the human brain, and then through continuous research and excavation, finally created the first intelligent crystal brain of mankind - Longteng I.

The appearance of Longteng I marks that human cultivation technology has entered an intelligent civilization from a mechanical magic weapon civilization. The spirit network system, intelligent war mecha, unmanned warships and other magic weapons that rely on the powerful computing power of the crystal brain to control zhì have begun to appear in human life, production, military and daily life.

This is the third revolution in human cultivation technology - intelligent revolution.

Also known as the crystal brain revolution!

After experiencing the crystal brain revolution, the productivity of human beings has increased significantly, and the power of various war magic weapons has become more and more powerful, occupying a dominant position in the struggle against the demon race, and after hundreds of years of counteroffensive, the demon race and the demon race have finally driven back to the fire demon world and the blood demon world.

After the victory of the war, mankind also opened a new era, and the calendar was changed for the first year of cultivation.

It was not until this time that the era of great interstellar colonization, which had gone through nearly 30,000 years of aggression and resistance, finally came to an end. Human society has entered the era of modern Xiuzhen civilization with rapid development.

However, the crisis remains.

The demons and demons, who are unwilling to fail, are always waiting for the opportunity to counterattack and invade the True Spirit Realm.

※※※※

After the raging battle, some low-level demon beasts still wandered among the metal wreckage.

Somewhere in the ruins of the base—

"Whoosh!"

When several scavenging black wolf beasts emerged from a pile of mecha wreckage, an extremely sharp howl suddenly sounded in the sky. The black wolf beast raised its head, and its eyes flashed with panic, and it fled with its tail between its legs.

I saw a meteorite streak across the sky, with a raging red flame, rushing towards this side.

The space of the exotic battlefield is extremely unstable, and natural disasters such as space cracks, meteorites, volcanoes, and earthquakes occur from time to time. When the previous base defense facilities were still there, they were naturally not afraid of meteorite attacks, and they could easily resist it with a casual Lingzi energy cannon or directly with the base's defensive shield.

But now that the base has been destroyed by the Beast Plague, the massive meteorite has driven straight into one of the metal wreckage.

"Boom!"

There was a loud bang, and the ground shook violently. The high-temperature meteorite after extremely fast friction crashed directly into the metal wreckage somewhere, bursting into a huge crater.

Countless metals were melted into red iron juice by the high temperature of the meteorite, and more metal debris scattered and splashed up, falling among other metal wrecks like a heavenly maiden, causing the surrounding unstable metal piles to collapse in pieces, and even several broken spirit arrays burst, causing a series of martyrdom eruptions, and dust billowing into the sky

The few scavenging black wolf beasts that couldn't escape were directly burned into char by the high temperature of the meteorite. The low-level demon beasts wandering in the distance looked at this side in fear, looking frightened and not daring to approach.

"Bang!"

Before the dust had fallen, a small explosion occurred in another unstable metal pile. A large amount of metal wreckage flew up again, and one of the heads, which had been torn apart by the demon beast to the point of being reduced to only half of its head, was rolled up by the force of the explosion, and after hitting the half-cut wall, it happened to bounce back into the huge crater.

The semi-circular head rolled down the wall of the crater towards the meteorite. I don't know if the meteorite turned red because of the high-speed friction, but its appearance is a bit special, it is not solid, but more like a molten liquid, which seems to be bound by an invisible force, condensed into a ball the size of a watermelon.

When the half of the head came into contact with the meteorite, the metal skull was not melted by the high temperature of the meteorite, but the liquid-like meteorite dispersed directly, and the red liquid completely surrounded the skull.

Immediately, the liquid of the meteorite immediately became as transparent as crystal, emitting a strange sizzling sound, and was rapidly disappearing, as if it merged with the machine's head.

At this time, if someone observes closely, they will definitely be surprised to find that the intelligent crystal brain inside the head of the machine is undergoing some strange changes at this time. The tiny chips that used to be distributed in the form of countless sheets are rapidly changing into tiny grains under the fusion of those meteorite liquids, just like human brain cells.

Between the numerous grains, they are connected by tiny pale white wires, like neuronal fibers between cells......

Strange changes were taking place inside the crystal brain, but the process only lasted for a few minutes, and when all the strange red meteorite liquid completely disappeared, an extremely complex crystal brain structure appeared inside the half of the broken machine brain.

"I ...... Who is it?

A moment later, a faint voice slowly came from inside the crater......"