When they came here for the first time, when they entered the World Tree for the first time, every one of them could hardly believe their eyes.

However, since they arrived, the explorer members have begun to strictly control weapons for the sake of order and security within the World Tree.

Everything went so smoothly, there were no mutant creatures blocking it, and there was no bad weather. In short, it was... very smooth.

To be honest, they were really not sure whether there were spies sent by the other party among this group of newcomers.

Of course, this also includes whether there are people with problems among those people before.

Xu Xin couldn't judge at all.

The World Tree is not like the underground world. You can judge whether you are a traitor or a spy by reading your heart. Here, all the survivors have experienced time travel. As long as you are a survivor, you cannot read your heart.

But they can't refuse these survivors to join. Their purpose is to build this world tree into a refuge for all survivors. It doesn't matter if they refuse to join.

Therefore, they can only act cautiously in personnel selection.

The survivors who make high-power weapons are all the original defectors. It is basically impossible for these people to have problems.

It was impossible for the alien invaders to send spies to Xu Xin and the others during that time, because the members of the Explorers during that time were just ants who could be manipulated at will in the eyes of the enemy.

Xu Xin and Ji Chaoyang basically take care of this aspect.

On the other hand, Qi Xuefei has also made breakthroughs in her research on genetic medicines.

That's right, it's the kind of drug that can affect telomerase in human cells, allowing cells to divide infinitely and controllably, achieving so-called "immortality."

The materials are somewhat scarce, and the main ingredients need to be extracted from older and more precious medicinal materials, or from some rare organisms.

Fortunately, Qi Xuefei's ability to multiply rare medicinal materials quickly is enough, and the medicinal materials grown from high-grade soil are as effective as those of long-term medicinal materials.

And rare creatures are not rare in the underground world.

When Li Wenxi led a group of people to mine, they could always dig out some strange creatures. Brother Qin Yunlong also went underwater to get some strange underwater creatures.

In short, although the genetic medicine has not been completely replicated, it has entered the clinical trial stage and is being tested on various other small animals. It may not be long before it can be produced.

Although large-scale mass production is not possible due to material limitations, there is still a way to manufacture it.

Of course, no one except the explorer members knew about the immortality potion.

The temptation of eternal life is too great. Unless it can be mass-produced, this kind of thing cannot be announced at all.

Even if the next wave of people are injected with the medicine, Xu Xin and Ji Chaoyang agree that they cannot tell them the truth. They can only tell them that this is a medicine that can reshape and strengthen the body.

Otherwise, if the news leaks out from their mouths and everyone knows, there may be big trouble.

Even in this world tree, there are still many things to consider.

However, relatively speaking, this place is still paradise.

Xu Xin looked at the handle that made a clicking sound when Xu Ying pressed it, shook her head, and sat on the sofa: "I heard that the underground world has already had that kind of brain-computer interface virtual reality game, why are you still playing this?

Growing antique games?”

"What is an antique game? This is a classic game!"

Xu Ying finally defeated the boss and then lay down on the sofa.

"Well... I don't really like those kind of brain-computer interface games. The world they created is too poor. Moreover, the people in the underground world have no imagination. They have never seen the sky or the stars, so they can't do anything.

Big scene. My reality is much better than that kind of virtual reality game."

Forehead……

That's right. In front of her is a person who has traveled through time for a thousand years. She doesn't need to enter virtual reality to find excitement.

Her life is exciting enough.

The way she looks now, she really doesn't look like someone who has traveled through thousands of years.

It’s really too homely!

"Here we come!"

At this time, Zeng Tao's voice came from the door.

The door was pushed open, and Lou Feier and Zeng Tao walked in.

"Yingying is playing games again." Lou Feier said with a smile.

"Yes, do you want to come together?"

"Why are you all here?" Xu Xin was a little surprised.

Only three people, Xu Xin, Li Wenxi and Xu Ying, actually live in this villa.

The four of them live on the other side.

"I asked them to come here!" Li Wenxi smiled and stuffed Coco into Xu Xin's arms, "I want to have a big meal, so I asked them to come over and make a big meal!"

"The main thing is that I cook the feast!" Lou Fei'er patted her chest and said proudly. Her clothes were very thin and billowy.

"Hey..." Coco turned over in Xu Xin's arms and continued to sleep.

"Then I'll join you too!" Xu Ying stood up in a hurry, "Haha, let you see again, I have honed my cooking skills for three hundred years!"

"No, Yingying, you are not allowed to enter the kitchen!"

"Why!"

"Why? You almost blew up the kitchen last time! If I hadn't taken another look, I wouldn't have known you were making alchemy in the kitchen!"

"What is alchemy! That is my exclusive formula!"

Looking at the noisy and laughing girls in front of him, Xu Xin felt a little dazed for a moment.

I really hope that this kind of life can continue forever.

Xu Xin looked out the window.

At this time, the sky in the world of World Tree is no longer as dark as it was a few days ago, and the brightness is obviously much brighter.

Outside, it's already early morning.

It will be dawn soon.
Chapter completed!