I use the system to pick up girls

Soon, Zhou Lin frowned again.

Several minutes had passed, and Space Yaotian hadn't indicated that there was a mission released, which made him a little unaccustomed.

Now, he no longer rejects this main task.

Although the upgrade mission of the space medicine field is mandatory, the rewards are really generous!

At this time, Zhou Lin didn't have time to wait for the system's prompt. He left a clone to take care of these children, and went straight out of the space medicine field.

Then he found Pan Ruoqing and asked her to bring some people to take care of the children in the space medicine field. As for his clone, he had other things to do.

"Since we have to retreat to the Brother City, the resources in other cities cannot be cheaper for others."

Zhou Lin murmured, and then, he and the three clones took the teleportation array directly, and first went to the former Qingyan City.

Qingyan City is a second-level city, and Zhou Lin is very rich in resources. Last time, he had collected the high-grade Yuanjing mine into the space medicine field. Now, he wants to bring other mines into the space medicine field.

Then, the four Zhou Lins each took a map of the mines and ran towards four different directions.

Before arriving at a mine, activate the space medicine field, and bring that mine into the space medicine field.

boom!

Rumble!

All of a sudden, there were bursts of noises from around Qingyan Mansion, as if there was an earthquake.

"what happened?"

"what happened?"

"Isn't someone trying to rob the mine?"

The cultivators of Qingyan Mansion were all startled, they flew to the roof of Qingyan Mansion and looked around, but they couldn't see anything at all.

One place after another, there was a constant bang.

At this moment, the entire Qingyan City was not at peace. All the practitioners were talking about it, but no one knew what happened.

The four Zhou Lin acted at the same time, and in less than half a day, all the mines around Qingyan City had been collected by him into the space medicine field.

Without these resources, Qingyan City will be reduced to a low-level city.

Zhou Lin returned to the City Lord's Mansion, took the teleportation array, first returned to Brother City, and then took the teleportation array to Chu City.

Then, violent vibrations began to be heard around Chu City.

Next is Pojun City and Fumo City.

It took Zhou Lin a day to collect all the resources of the city owned by his brother Anbao into the space medicine field.

All of a sudden, the four cities were all reduced to the lowest-level cities without resources.

"Haha, when other forces occupy these four cities and find that there is no resource, the expression must be very exciting."

Zhou Lin laughed heartily.

With the resources of the four cities, coupled with the strong heaven and earth vitality in the space medicine field, it is enough for everyone in Brother Security to practice.

Zhou Lin's eyes kept flickering.

He pondered in his heart, he has been back to Brother City for a day, and those forces that are closer to the Ethereal Island are probably already preparing to attack Brother City.

Now, he should also think about Brother City.

"Hey, do you want to raze the brother city to the ground? I want to see how you can raze the brother city to the ground."

Zhou Lin's face was full of confidence, and his eyes were full of excitement.

Then, he entered the lottery mall, and his eyes were fixed on the invincible defense system.

That's right, his trump card is the invincible defense system.

Nowadays, the invincible defense system can already defend against late-stage masters of the Xiantian realm, and only the peak masters of the Xiantian realm can break through the defense cover of the invincible defense system.

If he upgrades the invincible defense system again, I am afraid that even the peak masters of the Xiantian realm will not be able to break through that defense!

Thinking of this, Zhou Lin was very excited.

But upgrading the invincible defense system requires points.

"Upgrade, upgrade."

Don't say that he is not short of points now, even if he doesn't have points, he still has to find a way to earn points!

In an instant, the points disappeared.

"Ding!"

"Congratulations, the invincible defense system has been upgraded successfully. It can defend up to a half-step Heavenly Human Realm. With the different defense ranges, the defense power will be weakened. You can continue to upgrade by spending points, and the defense power will be further improved."

Soon, a system prompt sounded in Zhou Lin's mind.

Then, his eyes suddenly widened.

The highest defense is half-step Heavenly Human Realm!

Unless it is the most powerful person in the heaven-human realm, otherwise, it is impossible to break through this defensive shield.

And in the entire martial arts world, there is not a single person who is in the Heavenly Human Realm.

In other words, this invincible defense system is now the strongest defense in the entire martial arts world, and no one can break it.

This is too bad.

Zhou Lin was inexplicably excited and his eyes were bright.

So what if he is an enemy of the entire martial arts world?

Can all the practitioners in the entire martial arts world break through his invincible defense system?

Chapter 820 Liu Yan's Visit Chapter 4

After upgrading the invincible defense system, Zhou Lin's confidence increased greatly. ~~

He forcibly extracted the robot, and asked directly: "If I cover the entire Brother City with a defensive cover, what cultivation level can I defend against at most?"

His face was full of anticipation.