It has long been said that there are four seventh-level cosmic civilizations in the universe.

They are the Empire of Plus, the Bell Empire, the Empire of Stars, and the White Bear Empire.

These four civilizations are the known seventh-level cosmic civilizations in the current universe, and they are also the most powerful civilizations at present.

They are the most elite warriors with the most cutting-edge technology in the universe.

They commanded hundreds of sixth-level civilizations and thousands of fifth-level civilizations.

However, these four seventh-level cosmic civilizations will not oppress the lower civilizations like other higher civilizations.

Because the ordinary materials in the universe no longer work for them.

The reason why they have developed so many interstellar colonies is nothing more than to use these interstellar colonies to find the best materials in the universe.

Except for the top-notch materials, the seven cosmic civilizations were not interested in other materials at all.

Becoming an 'interstellar colony' of the four seventh-level cosmic civilizations will not only not be exploited, but also have the opportunity to obtain technology from their civilization.

This also makes many fifth- and sixth-level civilizations scramble to become the 'interstellar colonies' of the seventh-level civilizations of the four major universes

If Su Han didn't guess wrong, the reason why the Alpha Civilization would invite Long Yuanxing must have been instructed by a certain seventh-level civilization.

But which seventh-level civilization it was, Su Han couldn't be sure.

In the signal receiving station, after understanding the whole thing, Su Han fell into deep thought.

Don't look at the fact that Long Yuanxing is developing very rapidly now, and in just a few years, it has become a third-level cosmic civilization.

But in the vast universe, a third-level civilization in the universe is simply not enough.

In other words, if he is invited to participate in the Cosmic Civilization Exchange Conference this time, it may bring a huge crisis to Long Yuanxing.

Once a certain fourth-level civilization targets Long Yuanxing, then Long Yuanxing has no ability to resist at all.

However, Su Han's subconscious told him that this time was also a huge opportunity for Long Yuanxing.

If you can harvest some special materials or technologies at this cosmic civilization exchange conference.

For the future development of Long Yuanxing, there are huge benefits!

Liang Shuang saw that Su Han fell into silence, and couldn't help but ask in a low voice: "Team Leader Su, what do you think of this Cosmic Civilization Exchange Conference?" ”

Although Liang Shuang's voice was very small, it still woke Su Han up from his thoughts.

He glanced around, and found that Liang Shuang was looking at him expectantly, and asked rhetorically, "Do you really hope that Long Yuanxing can participate in this Cosmic Civilization Exchange Conference?" ”

"Of course!"

Liang Shuang didn't think about it, and replied directly: "For a long time, our Long Yuanxing has very little understanding of other civilizations, and it is just through this opportunity to have a good understanding of other civilizations." ”

"In the future, even if our Longyuan Star really collides with other high-level civilizations, we won't be at a loss!"

After listening to Liang Shuang's words, a gleam flashed in Su Han's eyes.

I have to say that Liang Shuang's idea is very correct.

With the development of Longyuan Star, sooner or later it will collide with other advanced civilizations in the universe!

Once Long Yuanxing participated in this Cosmic Civilization Exchange Conference, he had some understanding of other advanced civilizations.

Then if a big war breaks out in the future, you will also be prepared!

Of course, this was not the main reason why Su Han was completely determined to participate in this cosmic civilization exchange conference.

The main reason is that Su Han wants to find out the whereabouts of other metal fragments through this cosmic civilization exchange conference.

From the mouth of Magura III, it was learned that the mysterious metal fragment owned by the Dragon Kingdom was a product from the eighth-level civilization.

And there are three such metal fragments, each of which has a peculiar effect.

It's like the piece that the dragon country has, which can disturb the surrounding magnetic field and make all electronic components fail.

Su Han was curious about what kind of miracle the other three mysterious metal fragments would have.

Therefore, I want to use this space exchange conference to find out the whereabouts of the other three metal fragments.

Of course, Su Han also knew that such a chance was very small.

But after all, it's a try.

Thinking of this, Su Han finally made a decision in his heart, and said in a deep voice: "Okay, then let's go to this cosmic exchange conference!" ”

……

After discussing with the No. 1 boss, Su Han decided to let the older generation stay in Longyuan Star to prevent any accidents.

Su Han took the younger generation of the Dragon Kingdom to outer space to participate in this space exchange conference.

During this period, Su Han selected a lot of special materials from the 'treasury' of the Dragon Kingdom, hoping to exchange some materials that the Dragon Kingdom can use now in this Space Exchange Conference.

Because when the Alpha Civilization sent out the 'invitation letter', it sent a coordinate to Long Yuanxing.

Su Han didn't worry about finding a place.

Ride aboard the Liberty with the help of space folding technology.

Su Han and his party hurried towards that coordinate quickly.

In the Bill Ells system, there are many death stars.

But in the very center of the galaxy, there is such a death star.

There weren't any natives on this Death Star, but it was transformed into an unusually luxurious one.

At this time, countless strange spaceships are rushing towards this death star.

It turned out that this Death Star was the place where the four seventh-level cosmic civilizations joined forces to transform and hold the Cosmic Civilization Exchange Conference.

The four seventh-level civilizations are extremely arrogant, and they will never run 'strangers' to set foot on the planet they are on.

In order to convince many civilizations, the four seventh-level cosmic civilizations will join forces to create such a death star.

The purpose is to hold a cosmic civilization exchange conference on this death star.

Because this Death Star is jointly created by the seven major cosmic civilizations, it represents the highest combat power in the universe.

So no civilization dares to make trouble on this death star!

Suddenly, there was a ripple in the space around the Death Star.

Immediately afterward, a uniquely shaped spaceship appeared nearby.

If you look closely, it is the Liberty of the Dragon Kingdom.

On the Freedom, Su Han found that it was still a little short of the coordinates he had set, and he couldn't help but sigh: "After so long of development, our Dragon Kingdom still hasn't completely controlled the space folding technology. ”

There is still a difference between complete control and use!

If the Dragon Kingdom completely controls the space folding technology, then the Liberty will appear in the established coordinates without error.

However, this time, the Liberty used space folding technology to rush away, but it was a few points different from the set coordinates.

Don't underestimate these points.

In the event of a big war, these points are likely to be the key to deciding the outcome of the war.

On the side, Liang Shuang saw Su Han's dissatisfied appearance and secretly rolled his eyes.

It has only been a few years since Long Guo mastered the space folding technology, and it is already very good to be able to play this far.

Su Han also seemed to know that he was a little greedy, so he hurriedly put away the depressed look just now and looked at the death star in the distance.

No one thought that a few years later, the Dragon Kingdom would be able to have a place in the Cosmic Civilization Exchange Conference.