In the starry sky, a black battleship sailed quickly in the accelerated space.

"I'm finally going home!"

Lin Yun raised his head, a pair of bright starry eyes seemed to see the starry sky outside and the distant earth through the battleship, and said softly.

"yes, I'm finally going back!"

Lin Yuanshan and Zhang Haoran stood beside them, looking at this, Lin Yuanshan also nodded slightly and said.

Before they knew it, they had been away from Earth for almost four months.

Coupled with the time to go back, it is estimated that it will take more than half a year for them to go out this time.

This time, too long.

Previously, how long has Qingyun only been on Earth?

After such a long time, I don't know how far Qingyun Company has developed on the earth.

This time I went back, and I wasn't in a hurry.

On the way, if they encounter a planet that is suspected of having more resources, they will also stop collecting, and if they encounter a starry sky monster that they are interested in, they will also hunt.

……

Lin Yun spends most of his time in retreat and practice, and he doesn't care about that.

No matter what these people do, Yue Yi must stay in the battleship all the time, this is Lin Yun's instructions.

Yue Yi's strength can already fight against the battleships of the sixth-level scientific and technological civilization, and in case of any danger, he will have time to protect most of the people.

Ten days later.

"Boom-"

Lin Yun's realm broke through to the middle stage of Jindan.

Another twenty days later.

"Boom-"

Lin Yun's realm broke through to the late stage of Jindan.

Martial arts room.

"Hum—"

A special fluctuation flashed from between Lin Yun's fists and feet, Lin Yun smiled lightly, and said softly: "Another fourth-level martial art has reached the peak realm, and now, there are a total of eighteen fourth-level martial arts that have reached the peak realm......"

The fourth-level martial arts are no longer the foundation, and Lin Yun has not directly improved them by using the universe trading system.

Because, he found something......

As long as he learns a fourth-level martial art, the realm of this fourth-level martial art can be quickly improved.

The first-level martial arts, the second-level martial arts, and the third-level martial arts are like the basic strokes in calligraphy, horizontal, vertical, apostrophe, pinch, fold, and so on......

The fourth-level martial arts are like a complete font, at most a more complex font.

The basics are already very proficient, even if you write some complex fonts, why is it difficult?

Those calligraphers, is it not good to write a complicated character?

Perhaps, because I have never seen it, the quality is not high when I first write it, but as long as I write it a few times, the quality will improve rapidly, and it will soon reach its own realm.

Lin Yun's feeling in those fourth-level martial arts was like this.

After he learns it, as long as he practices it two or three times, he can raise them to the Xiaocheng realm, and as long as he practices it a dozen times, he can improve to the Dacheng realm, and at this speed, even if he is promoted to the peak realm, it won't take long.

Under such circumstances, Lin Yun would naturally not spend a lot of spiritual crystals to improve their realm.

It is important to know that if you spend spiritual crystals to improve, it is not cheap.

Third-level martial arts, the beginner level is about a thousand spiritual crystals.

Fourth-level martial arts, the initial level is about 10,000 spirit crystals.

Upgrading to the small level is about 100,000 spirit crystals, being promoted to the big level is about 1 million spirit crystals, and being promoted to the peak level is about 10 million spirit crystals.

No matter how rich Lin Yun was, how could he spend so many spiritual crystals on something that could be improved in less than an hour or a day?

What's more, Lin Yun faintly felt that some realms, if they could improve by themselves, it was best not to rely on the universe trading system.

As Lin Yun expected.

After he broke through to the Innate Realm, it was only a little more than a month that he had raised dozens of fourth-level martial arts to the Dacheng Realm, and several fourth-level martial arts had been upgraded to the peak realm.

Now, with the fourth-level martial arts, he has even eighteen of them promoted to the peak realm.

Because of breaking through to the Jindan Realm, Lin Yun could already learn a fifth-level martial art.

During this time, Lin Yun had learned a total of more than thirty fifth-level martial arts.

Now, there are more than thirty fifth-level martial arts, and Lin Yun has all reached the Dacheng realm, and at the same time, three fifth-level martial arts have reached the peak realm.

"Sure enough, if the foundation of martial arts is firmly laid, the benefits are great, but just like that, I don't know how much spiritual crystallization I can save......"

Lin Yun sighed slightly.

Taking all kinds of martial arts pills every day, natural treasures, and using various auxiliary equipment, Lin Yun's progress is rapid day by day.

Another month.

Lin Yun's body was shocked, but he broke through to the peak of Jindan.

"Boom—"

Countless heaven and earth energies gathered from all directions and quickly poured into Lin Yun's body.

The true qi, quantity and quality in Lin Yun's dantian increased rapidly.

"Mr. Lin broke through the ...... again"

"Is this the pinnacle of Jindan?"

Everywhere on this battleship, one after another martial artists looked up at the place where Lin Yun was retreating, and they all said with envy.

This kind of thing, in the past two months, they have encountered it several times.

Originally, some of them were also interested in collecting resources in the space voyage, capturing starry sky monsters, or deliberately looking at those low-level civilizations passing by, etc......

But after seeing Lin Yun break through one after another, and the companions around them all broke through one or two, the rest of the people gradually extinguished this kind of thinking and began to focus most of their energy on cultivation.

Before Savior Blue, their realms had all reached their innate peak.

It's just that the realm of Jindan is really difficult to break through.

However, the various resources that Lin Yun gave them were very rich.

Even they can't say anything dissatisfied with this.

At the time of departure, Lin Yuanshan, Zhang Haoran, like Lin Yun, had not yet reached the innate realm, Lin Yuanshan and Zhang Haoran had been with them, and the two of them used the same resources as them, but Lin Yuanshan and Zhang Haoran broke through one step ahead of them.

This shows that Lin Yuanshan and Zhang Haoran's talents are stronger than them.

Now, Lin Yuanshan and Zhang Haoran have broken through to the middle stage of Jindan for many days.

Lin Yun had already left them far behind.

They...... It's time to work hard......

The martial arts talent of these people is not low.

With a lot of resources, we will work hard again......

One by one, they also began to break through.

Now, two months have passed, except for Lin Yun, Lin Yuanshan, and Zhang Haoran, there are twelve people, and only two people have not broken through to the realm of Jindan.

At this point, the strength of Lin Yun and his party has changed dramatically from when they left the earth.

Fifteen people, thirteen Jindan realms.

The remaining two should not be able to break through in a short time.

Lin Yun raised Lin Yuanshan and Zhang Haoran's spiritual power to the seventh-level middle, and also raised the spiritual power of the other twelve people to the seventh-level inferior, and passed on to them the skills of controlling the sixth-level scientific and technological civilization warship.

Now, these people can perfectly control a sixth-level technological civilization warship.

However, on the cosmic trading system, the cheapest level 6 technology civilization warship will cost more than one billion spirit crystals.

A good Tier 6 scientific and technological civilization warship requires billions of spiritual crystals, or even nearly 10 billion spiritual crystals.

Lin Yun was also thinking about what level of warship he should buy.

Now, he only has more than two billion spirit crystals left on him, and if he wants to buy a better warship, he will have to return to Earth to think about it.

He has been away from the earth for so long, those people who collect resources should collect a lot of resources, right?

Lin Yun said secretly.

After two months of sailing, they are getting closer and closer to Earth.

Lin Yun had a trace of expectation in his heart.

Martial arts room.

Lin Yun began to practice martial arts.

Although, the first three realms of martial arts are the realm of laying the foundation, and the fourth realm and the fifth realm are not without the need to lay the foundation.

Now, he has broken through to the peak realm of Jindan.

Next, it's time to prepare to break through to the realm of the realm.

During this time, the fourth-level martial arts and fifth-level martial arts he learned should also be polished.

He learned a total of eighty-one fourth-level martial arts.

Now, there are thirty-two gates that have reached the peak realm.

In the following time, Lin Yun began to practice these fourth-level martial arts.

The spiritual power of the seventh-level peak made him comprehend these fourth-level martial arts faster at the moment.

On the first day, Lin Yun cultivated two fourth-level martial arts to the peak realm.

The next day, Lin Yun cultivated the three fourth-level martial arts to the peak realm.

One law, one hundred methods, as Lin Yun mastered more and more skills, Lin Yun's speed of perception became faster and faster.

Half a month later, Lin Yun had cultivated all of his fourth-level martial arts to the pinnacle realm.

Among them, there were only two martial arts, and it was difficult for Lin Yun to cultivate to the pinnacle realm, and he spent spiritual crystals to improve.

Subsequently, Lin Yun began to practice the fifth-level martial arts.

Level 5 martial arts, Lin Yun has only just started learning, and he has only learned more than thirty martial arts, and these numbers are not enough......

Lin Yun was learning the new fifth-level martial arts while improving the old fifth-level martial arts realm.

In this process, his Jindan peak realm also began to slowly push towards a higher realm.

In a blink of an eye, Lin Yun and Xinglan separated, and three months had passed.

At this time, their warship was only more than two million light-years away from Earth.

"In the future, I must build a space jump station near the earth, so that I can buy a high-level warship, no matter how far away, I can rush back soon......"

Lin Yun sighed.

More than 30 million light years, even if they were a fifth-level technological civilization warship, if they used the maximum space jump distance, they only needed to jump forty or fifty times in a row.

However, it took more than three months to sail, which was too time-consuming.

"Didi, Didi—"

Just when their warship was only a million light-years away from Earth, alarm messages suddenly came.

"Huh?"

Lin Yun sighed in his heart.

This message came from Earth.

Could it be that during the time they left, something happened to the earth?

There are two major crises on the planet, which one is there, and when did it appear?

"Quick! Full speed flight!"

Lin Yun immediately teleported to the core control room, looked at the screens in front of him, and shouted.

"Mr. Lin, what's going on?"

"Mr. Lin, what's going on?"

"Has something happened to the Earth?"

Whew-whew-whew-

At this time, other people also rushed over, watching this scene, and said nervously.

They also heard the alarm just now, and they all knew that this alarm was coming from the earth.