The stars, but they become the gray wind

"I won't mention his name. As a daughter, she probably doesn't want to see such an irresponsible father suddenly reappear in her life. Given the current situation, it's best to let everything take its course."

"Well, let's just let things take their own course for that girl and Julian. Maybe we'll run into each other again in the future."

"But the two fathers will have to worry about it then..." Aze laughed softly twice.

"I didn't expect you could joke, did you?"

"Just because our life forms have been upgraded doesn't mean we've lost our sense of humor."

…………

When Yang's consciousness returned to Reinhardt again, the other party seemed to have recovered from the severe mental shock he had just suffered. Yang was curious about what he had seen that caused him to be in such a state. However, the alien lady had something about her personal future, which might involve privacy, so she used the method of consciousness and memory projection to pull the two people into the deep consciousness separately, and projected the future she had calculated and observed.

"I believe you two already have a clear understanding of your own futures, right? So, let's move on to the next question. You already know about another possibility regarding your personal past and future on a microscopic scale. Is there anything else you'd like to know about the human civilization behind you?"

"I want to know... what human society will be like in the future?" Yang said after thinking for a while.

"Regarding this point, unlike my calculation of your alternative possibility of collapsing to a definite outcome, the future of your civilization is currently in a state of quantum superposition. The Tianyan Star Ring itself does not have the ability to cause this uncertain superposition state to collapse to a fixed outcome. That is something only a closed time-like curve computer can do. Next, I will present you with a result that has not yet been determined. This result is not like your other possibility, which is immutable once it reaches a collapsed state. Whether you choose or change certain outcomes depends on your own actions in the future."

The scene they saw shifted in a flash of light and shadow, but this time, they were stunned. A shattered planet appeared beneath their feet. The planet's crust and mantle had been blasted into countless fragments, exposing its molten core. Countless spacecraft wreckage drifted in the cold vacuum in orbit near the planet. Yang Wei-li and Reinhardt even glimpsed a few intact, seemingly human corpses.

"Wait, the spectral characteristics of this star and the position of the stars in the sky, could it be... Feisha?" Reinhardt figured out the identity of the planet from the broken planet under his feet and the clues in the surrounding environment.

"What on earth is happening here?"

"This is the planet Feisha, 527 years from now. As for this place, there was just a war."

"War? Who are the warring parties? The Empire and the Alliance?"

"No, more than 500 years from now, there are no Empires or Alliances anymore. Human society was governed by an organization called the Human Planetary Union Government. The Empire and Alliance had already disintegrated over a hundred years before the establishment of the Planetary Union Government."

"Human society at that time was a loose federation of planets and galaxies formed by the United Planets. The territory of the United Planets regime covered almost all the galaxies of the former Alliance and Empire."

"The former Alliance capital, Heinessen, the Empire capital, Odin, and Fessar have become the three important industrial, political, and economic centers of the United Planets regime."

"And the Feisha you stand on was originally one of the main economic and commercial hubs of the Xingxing United Regime 500 years later."

"Although over the past 500 years, as humans explored the galaxy, two new corridors were discovered within the unnavigable spell, creating new routes connecting the Empire and the Alliance, these new corridors' location and width limited their capacity. The Phesar and Iserlohn Corridors remained the primary channels for economic ties between the former territories of the Empire and the Alliance. Iserlohn, once a battlefield and military fortress, became an economic hub connecting the former territories of the two countries over the next few hundred years."

"However, unfortunately, humans have not made up their minds to make sufficiently radical changes to their social structure and life forms, and this is one of the main reasons why the planet beneath your feet has become what it is today."

"Humanity's current unified government, the United Planets, was established over 400 years ago. In its early days, like many other societies on the rise, it actively pursued innovation, progress, and outward exploration. However, due to the lack of fundamental advancements in human technology at that time, the United Planets' speed and capacity for outward expansion were limited."

"Even more than 400 years after the founding of the United Planets, the entire territory of the United Planets had only increased by less than one-fifth compared to the combined territories of the former Alliance and Empire."

"Most of them are planets in systems that were not developed during the Empire and Alliance era due to a lack of habitable planets."

"In the 400-plus years since the establishment of the United Planets, their primary focus has been on local environmental transformation or the establishment of closed ecological dome cities on planets lacking habitable star systems."

"At the same time, having freed themselves from the political constraints of Pheza, once the only territorial route between the Alliance and the Empire, humans discovered two new routes within the unnavigable spell."

"The discovery of new routes, the resulting new technologies for terraforming hostile planets, and a new round of small-scale external exploration and expansion injected significant social vitality into the newly established United Planets."

"However, due to the limitations of human navigation technology, the new round of expansion is still limited to the areas that have been explored. After more than 400 years, the United Planets Organization has encountered the same difficulties as the Galactic Federation. External exploration and expansion have reached their limits, and internal scientific and technological development has also encountered bottlenecks. Infrastructure construction such as planetary environmental transformation, which can stimulate the economy, is also unable to provide new economic and scientific and technological growth. Various contradictions are gradually becoming difficult to conceal."

"Just like the Galactic Federation back then and you now, the United Planets has also reached a state of social rigidity, sluggish economic growth, and stagnant scientific and technological development. Without fundamentally changing its social structure and life form, humanity has once again entered a dead end in the cyclical laws of history."

"And at this moment, an accident occurred. An alien civilization migrated from the Sagittarius Dwarf Spheroidal Galaxy to the Milky Way, causing everything to spiral out of control."

"Human society, already mired in a development crisis, once again chose the wrong solution... They chose to divert internal conflicts that had become irreconcilable by resorting to foreign wars."

"To ease internal conflicts, shortsighted humans rashly declared war on an alien civilization from the Sagittarius Dwarf Spheroidal Galaxy. The planet you stand on is one of the results of this war."

Chapter 257: Sublight Speed ​​Warhead Planetary Bombing Tactics (6000 words)

"It's clear that humanity has not learned the lessons of history."

"A civilization from the Sagittarius Dwarf Spheroidal Galaxy arrived in the Milky Way after a long migration. At that time, humanity had fallen into a development dilemma. To deflect the intensified internal conflicts, future humans recklessly and foolishly declared war on each other."

"But the facts show that humans, who only started the war to divert internal conflicts, were not prepared for a war with alien civilizations at all. They mistakenly inferred alien civilizations based on human thinking."

"Admiral Yang, let's imagine you're an alien civilization, and humans are at war with you. Your life form is completely different from ours, so you don't need the resources we do. The star systems humans have spent so much time transforming and building, whether it's their infrastructure or their industrial capacity, are of no use to you."

"In this situation, you want to achieve victory in the war as quickly and efficiently as possible while avoiding any losses on your side. So, what method would be the best way to completely eliminate the enemy's threat without causing any losses on your side?"

"Will we completely exterminate the human race, our enemy?"

"You guessed right! Interstellar wars between civilizations of different levels don't require any contact at all, and attacks on the enemy are long-range, non-contact strikes. Imagine you're the commander of an alien civilization, and you're about to launch an attack on a key human star system. The infrastructure humans have spent countless years building in this star system is meaningless to you, and its industrial production capacity is of no use to you. You don't need the human population as a labor force, and you want to eliminate the enemy in the most efficient and least costly manner. However, sending a fleet to attack will inevitably result in casualties."

"Admiral Yang, if you were the commander of such an alien civilization, how would you fight such a war?"

"Reminder: non-contact combat, ensuring no losses to our own fleet."

"Hmm...hide in the asteroid belt outside the galaxy, equip meteorites and asteroids of suitable size with thrusters, then accelerate them to sub-light speed and smash them directly into the other side."

"Sometimes, I have to say, you're a pretty quick learner, Admiral Yang."

"Since you've mentioned that sending a fleet will inevitably result in losses, then launching hard-to-intercept near-light-speed asteroids and massive ice at the enemy from beyond their range is clearly the most cost-effective attack plan."

"You are indeed one of the two best human commanders of this era. You are not bound by rigid tactics and dogmatism."

"You're too kind. I'm just an ordinary soldier."

…………

"You have to understand that before this war, initiated by humans, the United Planets hadn't fought a war in over a hundred years. The largest battles they had experienced were against the security fleets of giant corporations with separatist tendencies in certain galaxies. While these security fleets were a deterrent compared to the nearly unarmed civilian ships, they were completely inadequate compared to the United Planets' regular military fleets."

"And before the war, the largest battles these reckless humans had ever experienced were merely small-scale security battles against these separatist giant corporations."

"They were completely unprepared and unprepared for this war, and even resorted to asymmetric tactics like a security war against an alien civilization they had no idea about."

"Humans were the first to attack each other and initiate the war." Aze called up the images simulated by the Tianyan Star Ring through its own huge computing power.

The warships of the Human Planetary United Government, clearly sharing the same technological heritage as today's Alliance and Imperial warships, but with completely different appearances and armaments, formed a fleet of over 5000 warships. They opened fire on a fleet of just a dozen peculiarly shaped silver and black ships ahead. Under this intense barrage of fire, this small fleet quickly collapsed. They quickly turned around and, at what Yang considered unbelievable speeds, escaped the Human fleet's attack range.

"Sub-light speed warp engine." Aze explained.

"Although they possess jump engines that operate in similar principles to yours, allowing them to travel through sub-spaces like the subspace, these engines can only travel along fixed routes between star systems due to the gravitational pull of stars and other massive celestial bodies, and their jump distance is limited. This is why you can only cross the unnavigable space through the Iserlohn and Phesar corridors."

"Admiral Yang, do you know how they got from the Sagittarius Dwarf Spheroidal Galaxy to the Milky Way?"

"At this distance, there shouldn't be any natural subspace channel, right?"

"No, so they used sublight warp drives, which took a very long time to cross this distance. And in order to produce such a large number of sublight warp drives, they expended energy and matter on an astronomical scale."

"So, when humans recklessly went to war with them over 500 years later, they were already headed for a doomed end."

"When humans went to war with them, they didn't even know their technological level before launching the first wave of attacks."

"In order to withstand collisions with hydrogen atoms and other high-energy particles in various cosmic environments while traveling at 99.999 percent of the speed of light, their spacecraft's hull is coated with a layer of strong interaction material that possesses a certain degree of self-repairing ability and is locked at the molecular level."

"Although your technology at that time was already capable of producing a certain amount of antimatter, it still couldn't pose a significant threat to them."

"So, in the early stages of the war, the enemy adopted an attitude of avoiding battle. For a civilization that spent tens of thousands of years migrating to the Milky Way, rather than wasting time and energy fighting you, it would be better to quickly collect resources in a part of the Milky Way where you won't interfere, and build more sub-light speed warp ships capable of intergalactic navigation."

"Humanity, however, took their wall-wart actions as evidence of a cowardly, weak, and backward civilization, and they intensified their pressure."

"Until the other side could no longer tolerate it and launched a counterattack against the humans at that time. This unexpected counterattack directly destroyed Feisha, the political center of the then Human Planetary Union Organization."

"And the means of attack were completely unexpected. They launched a large number of sublight-speed asteroids from the asteroid belt at the edge of the galaxy, and Feisha launched missiles equipped with sublight-speed warp engines mixed in with thousands of sublight-speed asteroids."

The perspective in the deduction simulation was zoomed out to the scale of the entire galaxy. A large number of meteorites suddenly broke away from their original orbits under the action of the thrusters and flew towards the planet Feisha, which was dozens of astronomical units away. During the whole process, the human party B obviously did not try to intercept them, but there were too many sub-light-speed meteorites thrown at the planet Feisha. According to Yang's estimation, the number of sub-light-speed meteorites thrown at Feisha from all angles and directions alone was as high as five digits. The fleet guarding the core of the human regime 500 years later was almost running around in the entire galaxy. The huge size and mass of asteroids and meteorites made the fleet trying to intercept sub-light-speed asteroids have to regard the destruction of sub-light-speed asteroids and any fragments produced in the process as an almost impossible goal. The damage caused to several planets by any sub-light-speed meteorite fragments produced in the process of intercepting and destroying asteroids is unimaginable.

At the same time, the orbital defense system above the planet Fessa also began to operate. An armed satellite that seemed to be an enhanced version of the Artemis Necklace fired at the sub-light speed asteroids approaching the planet, but the neutron beam obviously could not cause effective damage to the asteroids. Therefore, what was launched from these satellites were not the directional weapons that Yang was familiar with, but a large number of nuclear bombs and orbital artillery shells.

Hundreds of thousands of nuclear weapons launched from armed satellites poured down on several smaller sub-light-speed asteroids closest to the planet itself. In an instant, an asteroid that was hit by the blanket attack of nuclear weapons shattered, but the asteroids and meteorite shower fragments shattered by the nuclear explosion exceeded the processing capacity of the planetary defense system. Accompanied by thousands of fireballs, these sub-light-speed meteorite fragments broke through the atmosphere of the planet Feisha.

The first mushroom cloud caused by the impact of asteroid fragments rose from the ground, followed by the second, third, fourth... The entire continent of the planet Feisha was bombarded by this rain of asteroid and meteorite fragments.

In the first round of impact of meteorite rain fragments, nearly 1/3 of the surface cities of Feisha were razed to the ground, and only a large crater caused by the impact of a meteorite was left everywhere where the cities were. This was only the damage caused by the asteroids that escaped the net in the first round of interception. In this round of interception, the fleet guarding Feisha, the core star field of future mankind, only succeeded in deflecting or destroying three-digit asteroids that were moving towards Feisha. There are still thousands of sub-light speed asteroids moving towards Feisha.

After working tirelessly throughout the galaxy to intercept asteroids, the fleet and orbital defense system, after several days of high-intensity operation, finally saw the first complete asteroid that slipped through the net. An asteroid with a diameter of 920 meters and moving at a speed of 0.8c successfully passed through the armed satellite orbital defense system that had almost exhausted all the nuclear weapons on board, and smashed directly into the surface of the planet. A nuclear fireball and tsunami with a diameter of hundreds of kilometers rose from the impact point, and energy equivalent to tens of trillions of tons of TNT was released on the surface of the planet. The shock wave generated by the initial impact alone destroyed more than half of the surface of the planet Feisha within a few hours. Trillions of tons of dust were thrown into the atmosphere of Fessa, followed by a tsunami that swallowed up almost all the land on the planet. After 500 years, the arid planet of Fessa seemed to have completed a large-scale environmental transformation. There were large oceans on its surface, and these oceans, which were originally used to improve the environment of the entire planet, became a symbol of death and destruction at this moment. Tsunamis several kilometers high swallowed up the continental shelves and had suffered global shock waves. Most of the cities and artificial buildings on the surface had become ruins. Tsunamis several kilometers high completely swallowed up the traces left by humans on the surface.

"So, your wars are actually more like minor skirmishes. A true war between interstellar civilizations is based on the complete extermination of the other side."

Aze said to the two people who witnessed this horrific scene.

In our universe, the core of any war between interstellar civilizations, that is, the concept of non-contact interstellar warfare, is to completely exterminate the other side in a short period of time and at the lowest cost."

"We can either not fight, but if a true interstellar war breaks out, then the goal of both sides will definitely be to completely exterminate and destroy the other's species, planets, and even star systems."

"Now, you should understand why we regard war as an act only carried out by inferior civilizations, right?"

"Because such behavior does not benefit any party at all, but only increases the risk of their own demise."

"The tactic of non-contact interstellar warfare is to launch a large number of relativistic kinetic missiles and sub-light-speed warheads at near-light speeds outside the enemy's range, completely destroying the enemy's space infrastructure, planets, and even the stars themselves."

"Therefore, no matter how many fleets you have, you will still be exhausted."

"The resources and time used to build these fleets should be used to produce more sub-light-speed asteroids and relativistic kinetic weapons close to the speed of light, ensuring mutual destruction in the event of a war, rather than relying solely on fleets and orbital defense systems for passive defense."

"In our universe, relying solely on fleets to attack is tantamount to seeking death."

"After all, the work that most of our fleet needs to do is just to complete the construction of stargates in various star systems."

"Such a sub-light-speed meteorite shouldn't be enough to destroy the entire planet Feisha, right?" Yang Weili observed the planet Feisha being hit by a sub-light-speed asteroid in the simulation, and its entire surface was almost destroyed. As the nuclear fireball and shock wave gradually dissipated, an impact crater with a diameter of hundreds of kilometers was left on the surface. Feisha, which was once covered with urban clusters and industrial facilities, has completely turned into a death star in the asteroid impact.

"Don't forget, Admiral Yang. An asteroid impacting at 0.8 times the speed of light is enough to cause this level of damage to a planet. That alien civilization from beyond the Milky Way launched at least tens of thousands of such asteroids, mixed with several relativistic kinetic missiles traveling at near-light speed. Any orbital defense system or fleet attempting to intercept an asteroid of this magnitude would be futile."

"Then, I don't need to tell you what happens next, you can guess it." Aze made some adjustments to the entire simulation picture. More than 9000 asteroids of different masses and diameters formed a straight line from all angles in the asteroid belt outside the star system, pointing to the main body of the planet Feisha.

"Each asteroid is accelerated to 239834 kilometers per second, or 0.8 times the speed of light. Even with the technology of 500 years from now, it will be impossible to intercept such a large number of sub-light-speed asteroids."

"And ultimately, these asteroids aren't the real killer weapon. The real killer weapon is the warp-engine, near-lightspeed kinetic missiles hidden among these 9000-plus asteroids."

These kinetic missiles will maintain the same speed as the asteroid during the initial launch. Compared to asteroids that are larger in size and mass than themselves, these kinetic missiles mixed in with them appear to pose a lower threat and will not be prioritized for interception.

"But these kinetic missiles, capable of striking their targets at speeds exceedingly close to the speed of light, are their true killer weapon. These relativistic kinetic missiles carry a certain amount of unstable neutron degenerate matter within their warheads. When a relativistic kinetic missile strikes its target, the near-light-speed impact will instantly transform the entire missile into pure Hawking radiation and gamma rays, releasing the neutron degenerate matter within, creating a secondary explosion powerful enough to completely rip an entire planet to shreds."

"Such a weapon is really..." Yang Weili tried to give a more accurate evaluation of this weapon, but found that he could not find a suitable adjective for a while.

"Are you being completely insane? Admiral Yang, you should know that this is the norm in true interstellar warfare. The petty skirmishes you humans engaged in in the past couldn't even be called war. Truly powerful and ancient civilizations, once faced with the need to resort to force, would not hesitate to wipe out planets and stars on a massive scale from the universe."

"You know, even for us, it's a very simple matter to completely blow a planet or star into pieces or even wipe it out from the universe. It's so simple that we don't even need to press a button."

"In the nearby satellite galaxy of the Milky Way where our parent star is located, there are more than billions of supernovae densely distributed near the center of that satellite galaxy and along an entire spiral arm. Can you guess where those supernovae come from?"

"This is the norm for true cosmic-scale wars, and it's why many intelligent beings and civilizations in our universe and beyond should do their utmost to avoid interstellar wars."

"This kind of indiscriminate conflict, aimed at completely destroying each other's species and star systems, benefits no one. Unlike your struggles for resources and benefits in the universe, any war between us and those older beings means that both sides must be prepared to fight with mutual destruction as the prerequisite and price."

"And this war, which may take place 500 years from now, was determined from the moment it began."

The human fleet and orbital defense system responsible for defending the Fisher Galaxy in the future observation and calculation simulation screen finally couldn't hold on. More than a thousand asteroids with a diameter greater than one kilometer have crossed the last line of defense of the orbital defense system and continuously bombarded the planet's already riddled surface. Thousands of nuclear fireballs the size of continents completely engulfed the entire planet. Thousands of impact craters with a diameter of hundreds of kilometers were smashed into the planet's crust. Seen from space, the originally flat surface of the planet full of sea water and artificial buildings has become bumpy, and huge amounts of dust have been thrown into the atmosphere, causing the entire planet to look gray in space.

The seismic waves generated by the impact spread across the entire planet. The planet Fisher was experiencing extremely violent earthquakes in seconds. At the same time, more asteroids had broken through the atmosphere and were about to fall to the ground. When more than 1000 asteroids broke through the atmosphere at a speed close to 0.8 times the speed of light, the ultra-high speed almost directly triggered a fusion reaction of nitrogen and oxygen elements in the atmosphere. The entire atmosphere was almost ignited by a chain reaction of nitrogen and oxygen fusion reactions. The planet wrapped in dust was mixed with the nitrogen and oxygen atmosphere ignited by the fusion reaction. The planetary-scale fire spread across the globe, forming a scene like hell. The surface was covered with lava because of the previous impact. There was no living thing on the entire planet Fisher, from microorganisms to humans, and this was still not the end of the planet Fisher.

Several sub-light-speed asteroids with diameters between 5 and 6 kilometers accurately hit the junction of the geological fault plates in the equatorial region of the planet Fisher. Energy equivalent to hundreds of trillions of tons of TNT was released instantly. The crustal plates of the planet Fisher began to gradually break under the huge energy and sank into the liquid mantle of the planet. This directly tore a giant rift and scar with a diameter of thousands of kilometers in the equatorial region of the planet, which was filled with lava flows. Looking at the surface from space, the dark red scar looked like a knife wound that cut through the vital part of the planet.

Although the orbital defense systems and fleets operating in space are still trying to intercept asteroids, any efforts are in vain in the face of the huge number of nearly 10,000 sub-light speed asteroids. The target they are protecting, the planet Phesar, has long been reduced to a lava hell wasteland, and there is no living thing on it.

The curvature engine relativistic missile, which had been traveling synchronously at the same speed with several asteroids of relatively small mass and volume, was waiting for this opportunity. The previous intensive bombardment of sub-light-speed asteroids had destroyed all the opponent's facilities on the surface of the planet, and the curvature engine light-speed missile was the final and most fatal blow.

50 relativistic kinetic missiles driven by curvature engines at near-light speed broke away from the asteroid that was moving synchronously with them. The warp rings at the tails of the missiles began to provide terrifying acceleration for the missiles. In less than ten seconds, the 50 relativistic kinetic missiles accelerated to 99.999% of the speed of light and pounced on the planet like a pack of wolves.

When the relativistic kinetic missiles, traveling at nearly the speed of light, collided with the planet, they unleashed a burst of pure gamma rays and a massive amount of Hawking radiation. The entire planet was instantly ripped apart, and the continental plates, along with the atmosphere, were flung directly into space. The unstable neutron-degenerate matter confined within the relativistic kinetic missiles also exploded after losing their restraints. Everything within the planet was completely destroyed in the secondary explosion caused by the neutron-degenerate matter's beta decay. Although each relativistic missile contained only about one cubic centimeter of neutron-degenerate matter, only 80,000 tons of matter, equivalent to 80,000% of the total mass, was converted into pure energy during beta decay. However, even with just over 80,000 tons of matter being converted to pure energy, the energy released was equivalent to over 1600 trillion tons of TNT. The neutron-degenerate bombs undergoing beta decay, along with the relativistic missiles, were launched into the already shattered planet's core at nearly the speed of light. The unstable neutron-degenerate matter instantly triggered 50 explosions of the same scale. The huge explosion directly tore apart the liquid core of the planet and detonated a part of the naturally existing electron degenerate matter in the core of the planet. The continental plates of the planet that had been blown into orbit were also completely destroyed into piles of rubble and dust by this secondary explosion from the core of the planet. The remains of the planet Fisher, which had been bombarded by sub-light-speed asteroid rain, relativistic kinetic warheads, and neutron degenerate matter bombs on the core of the planet, began to deviate from its original orbit and fall towards the star.

Yang Wei-li and Reinhardt, who were watching this spectacular simulation, were stunned.

Note: When neutron star matter escapes from the neutron degenerate state, it will become free neutrons. However, free neutrons cannot exist in a stable state forever, and they will also undergo neutron beta decay.

Beta decay is a type of decay in which energy is released. In beta decay, a neutron will release a proton, an electron and an antineutrino. The antineutrino will disappear as energy after the explosion, resulting in a loss of 0.8% of the neutron's mass. One cubic centimeter of neutron-degenerate matter is about 100 million tons, and 0.8% of 100 million is 80,000. After 100 million tons of neutrons are converted into pure energy through beta decay, 80,000 tons of matter will be converted into pure energy, which is approximately equal to 32 million Tsar bombs. Even if it explodes on the surface, it is enough to blow the entire Earth out of its orbit.

Chapter 258 The Mysterious Metatron's Cube (6000 words)

"What kind of existence is that civilization from the Sagittarius Dwarf Spheroidal Galaxy?"

"They are a civilization that... um... enjoys... migration. This one that has arrived in the Milky Way is just the advance fleet of one of their branches. Their true main force is still on the way."

"Their true goal is the center of the Milky Way. For any civilization with sufficiently advanced navigation technology and resource development capabilities, the stars and densely packed regions at the center of the Milky Way are extremely attractive. As for contact with you 500 years from now, it's just a minor incident on their way."

"The advance fleet that clashed with you humans 500 years later arrived in the Milky Way primarily to survey the galactic center. This was to ensure that the subsequent main force would not be affected by the complex celestial environment in the center of the galaxy when it arrived."

"And...the migration methods of the main part of their civilization may be a little beyond your imagination."

"If we use our cultural terms to describe them, these guys are definitely a bunch of fanatical and abnormal interstellar travel enthusiasts."

The corners of Aze's mouth twitched slightly. The cause of this incident was actually a rather unremarkable discovery. While patrolling the celestial sphere, the observation equipment carried by the Barrier Star Ring in the Void Gate Galaxy discovered some strange things: some wandering star systems located approximately 500 light-years above the Milky Way. At first, these wandering star systems did not attract much attention, until...

A week ago, in the Void Gate Galaxy, the Rampart Star Ring, and Yuki suddenly received a message from the space station's artificial intelligence. The message contained an analysis of the abnormal astronomical phenomena of dozens of wandering star systems in the area above the Milky Way disk.

"There's been a massive decrease in stellar radiation. Hmm... the probability of a Dyson cloud existing in a rogue star system is... 100%?"

"A civilization in a wandering star system outside the Milky Way? That's truly rare."

"Huh? Analysis of the trajectory of a star system? Wait, this thing isn't a natural wandering star system?!"