It is precisely because of the establishment of a fixed connection channel that there will be special regional barriers and special pricing.

And every time the space-time engine crosses the world barrier, it needs a three-day cooldown, just like this zombie world, even if Lin Lei earns enough contribution points now and wants to go back, he needs to wait three days before he can start time-space travel.

Once you return to Earth, it will also take at least three days before you can cross again.

At the same time, based on the criterion of not gathering wool in the same time and space, if Lin Lei chooses to return to this time and space, not only will he not be counted as going out of the field, but he will also have to pay the travel expenses in full, and the system will automatically stop any material recovery in the world.

In other words, Lin Lei can come over for vacation and consume contribution points, but he can't come over to work and earn contribution points.

With the commitment of the system, Lin Lei finally felt at ease.

This love can be discussed, at most it is a long-distance relationship.

The battle was completely over, and Yang Chunxi left some people to clean up the battlefield, mainly to recover the bullet casings that were shot out for secondary filling.

With the ammunition supported by Lin Lei and the recovered shells, Niutoushan does not need much ammunition supply in the short term.

Therefore, the management committee unanimously decided to exchange all the loot for rice, as for instant noodles, which is a luxury item, and when the agreement was signed before, few people received instant noodles.

One hundred first-class zombies, if you exchange bullets, Lin Lei needs to pay 500 bullets from Niutoushan, and he earns the difference of 3,500 bullets, making 7 times the profit.

To exchange instant noodles, Lin Lei needs to pay 100 packs (ten boxes) of instant noodles, and he can earn the difference in price of 1490 boxes, making a net profit of 149 times.

To exchange rice, Lin Lei needs to pay 100 catties of rice, and he can earn a difference of 1.95 tons (3,900 catties), making a net profit of 39 times.

A group of people discussed for a long time and chose a way that they thought was the most cost-effective, but for Lin Lei, although it was not the most cost-effective, it was better than exchanging bullets.

For the people of Niutou Mountain, the most luxurious instant noodles are the cheapest here in Lin Lei, who called the exchange method of the system, which is calculated according to the substance, not by the item.

After inquiring about the data processing center, after deducting the ammunition paid before, Lin Lei finally paid everyone 16 tons of rice, and some of the remaining bits and pieces, Lin Lei simply exchanged more than 1,400 boxes of instant noodles that had been exchanged before and could not be sold in his hands, all of which were half exchanged and half sent, and were given to the other party.

"Brethren! Boss Lin has a treat for dinner today, the beef soup is enough, and the instant noodles are full! After handing over the materials, Yang Chunxi ran out of the warehouse excitedly and said loudly to everyone in the square.

Listening to the cheers outside, Lin Lei couldn't help but complain: "Nima! This instant noodle should not be sent, drink beef soup today, and it is estimated that you will drink Laotan sauerkraut soup tomorrow. If you eat instant noodles, you will eat instant noodles, why do you have to say that I gave it to you. ”

Without the threat of zombies, the ordinary people in the camp naturally came up from the underground shelter, and for a while, the entire camp was full of people, but there was a trace of fireworks.

Yang Xueli took Lin Lei, who had nothing to do, to visit around.

To be honest, there is really no place to visit in this kind of gathering area, but it is a bit similar to going to his girlfriend's house to visit relatives, for which Lin Lei also exchanged 1 contribution point for candy, but whenever he met someone talking to Yang Xueli, he would go up to distribute candy.

As a result, more and more people came to talk.

"I'm sorry to break the bank, we have lived together for nearly four years, and we know each other very well, so we have to say hello when we meet." finally sent everyone away, and Yang Xueli apologized to Lin Lei.

"A few candies are nothing, but this kind of neighborhood is more interesting than ours." Lin Lei said with a smile.

"Where are you....... What is it like? Yang Xueli said curiously.

"It's the same as before the end of the world!" Lin Lei thought about it, and then said.

The world he is in has never had an apocalyptic crisis, so it is naturally no different from before the end of the world.

"Is there such a beautiful place in this world?" Yang Xueli looked envious.

It has only been a little more than four years since the outbreak of the end times, and she has also experienced the good life before the end of the world.

"Do you want to go?" Lin Lei asked suddenly.

"Huh? You mean, you're going to take me out of here? Yang Xueli was a little surprised.

"Would you like to?" Lin Lei said.

Yang Xueli: "Just take me alone?" ”

Lin Lei: "At present, I can only take you alone, and after I go, I can't come back in a short time." ”

Unless Lin Lei can earn more than 100,000 contribution points a day, or Yang Xueli is unwilling to terminate the master-servant contract, he really can't bring her back.

Yang Shirley: "Let me think about it, okay?" ”

Yang Xueli was very entangled, she admitted that she did have a good impression of Lin Lei, but it was impossible to agree to elope with him after only a few hours of contact, and she went to an unknown place that she could not return in a short time.

"It's okay, think about it, and I don't have the ability to take you back at the moment, I have my mission to complete. Even if you say yes now, you'll have to wait until I'm done with my mission before I'll come back to pick you up. Lin Lei explained.

"Are you going to leave now?" Yang Xueli heard the meaning of parting.

"Two days to go." Lin Lei replied.

"That'..... Wait for me in two days, and I'll give you an answer. ”

"Okay, I'll wait for you."

Perhaps affected by the parting, the two were silent.

Coming to the door of a house stacked with miscellaneous items, Lin Lei suddenly quickened his pace and walked in, and stopped next to a glass jar.

Lin Lei pointed to several polygonal crystals of different colors in the glass jar and asked Yang Xueli: "Where did you get this thing?" ”

He didn't ask for a name, apparently the system told him.

"Of course, this is a crystal nucleus dug out of the head of a mutant beast! It was inedible and had no other purpose, it was just so hard and looked a bit like a gem that it was collected. Moreover, this kind of crystal nucleus is not available to all mutant beasts, generally ten first-level mutant beasts can dig out one or two, but the second-level mutant beasts have a higher chance of digging out, and the crystal nucleus dug out is also larger. Yang Xueli explained.

As for the higher-level third-level mutant beasts, they had never encountered them, and even if they did, they might not be able to exterminate them.

"Mutant Beast Crystal Nucleus? Is it so casual to choose a name? Lin Lei couldn't help muttering.

"And what do you call it over there? What exactly is this thing for? Yang Xueli was very curious.

Even Lin Lei is very nervous about something, presumably it is not as simple as being hard.

"It's also called the Mutant Beast Crystal Nucleus over there, or we can't talk about the name so casually, we can all take the same name if we are so far apart." Lin Lei explained with a smile: "You'd better collect a little more of this crystal nucleus yourself, and when you are promoted to the fourth level of evolutionary, it can assist you in cultivation and fighting." ”

The reason why Lin Lei complained was because the system also took such a name.