Expanding three blocks in half a month, this task gave Qiao Yuchen a bit of a headache.

Needless to say, the zombies in three blocks must be cleared, and he is the only one here, so it seems a little difficult to complete this task.

Qiao Yuchen sat on the sofa, eating his dinner, he had been doing task stage two all day, and now he was thinking about how to complete the side quest while eating.

Now because of an evolutionary rain curtain, the whole thing has changed. The entire city is full of second-level zombies, and second-level zombies are much stronger than first-level zombies in terms of speed and attack power. And the sense of smell of second-level zombies is very sensitive.

It's a bit difficult to sneak up on a certain range.

Qiao Yuchen muttered while eating something in his mouth:

"Now I have the resources in my hands, some fireworks, weapons, ammunition ... food, and all sorts of stuff..."

"Now there are 54 pistols, but there are no silencers, and there are some MK2 grenades..."

"Well, there are a lot of zombie crystals, don't you try to awaken?"

Qiao Yuchen thought of awakening, but then denied it: "No, not to mention that it was made out of the zombie's brain, even if I don't dislike it, it is still a question whether I can awaken so much, and besides, the system will reward the awakening potion, or use the system properly." ”

Qiao Yuchen was a little worried, his consciousness was looking for things everywhere in the system space, and suddenly his eyes lit up, and he saw the exchange machine in the corner.

"yes, can you see if there is anything that can be used, the system, exchange all the crystals, and see how many energy points there are."

"Drop, 17 first-level energy, 170 convertible energy points, one second-level energy, 50 convertible energy points, 273 pseudo-second-level energy, 8190 convertible energy points, two third-level energy, 1000 convertible energy points, one fourth-level energy, 5000 convertible energy points."

"Drop, please confirm if the host is exchanging energy..."

"Indeed... Wait..."

Seeing the data given by the system, Qiao Yuchen was instantly stunned, and he felt incredible.

"System, I don't have a tertiary energy source and a fourth-level energy source? What's going on? And what the hell is that pseudo-secondary energy source? ”

"Drop, pseudo-secondary energy is the energy between primary energy and secondary energy..."

"Oh, I see, if it's half of the second-level energy, half of the third-level energy is pseudo-third-level..."

"Drip, yes, host..."

"Oh, I don't have the third-level energy and the fourth-level energy, what's the situation?"

"Drop, please check it out for yourself..."

Qiao Yuchen carefully checked in the system space, pseudo-secondary crystals, primary crystals, and secondary crystals were all there, but he just didn't see the third-level crystals and fourth-level crystals.

Just when Qiao Yuchen was depressed, something caught his attention.

"Damn, isn't it..."

Qiao Yuchen's consciousness moved, and a box appeared in his hand, and when he saw this box, Qiao Yuchen's heartbeat accelerated.

This box is the box that Xu Hua left him, he wanted to open it at that time, Xu Hua had to wait for them to leave before opening it, and when he went out to see off his sister and brother, he forgot about this box.

If it weren't for the exchange of energy points this time, Qiao Yuchen probably wouldn't know when he would be able to remember.

Qiao Yuchen took a deep breath, his hand was still a little trembling and opened the box, the first thing that caught his eye was a piece of paper, covering the entire box, and there were words written on the paper, looking at the handwriting of the girl.

Qiao Yuchen picked up the piece of paper and looked at it carefully. Seeing the above content, Qiao Yuchen couldn't help but have that woman in his mind again.

"To Yuchen, seeing this message, I think my brother and I have left Yuyang, although the time here is short, but my heart has been left here, thank you very much for taking care of our sister and brother. But we had to leave, and there was still important work to be done in the water kiln. ”

"What is in the box are two third-level zombie crystals and a fourth-level zombie crystal, because of these three crystals, my parents... Still don't talk about it, my brother and I haven't awakened, and we can't use it, so I'll give it to you. Hope you can use it in the future. ”

"If possible, I really want to stay here forever, I feel warm here, there is a sense of home, in this last world, we see too much deceit, life is threatened at any time, and here, even if you need to go out and fight, it will feel very worthwhile, because this is home."

"Maybe I'm cowardly, but I'm shy, I don't dare to say it to my face, I'm afraid that if I say it, I won't want to leave here again, so I will feel sorry for my parents. So I can only tell you here..."

"I like you, it's a love that can drive me crazy and desperate..."

"You don't need to answer me, if I can get back here alive, you tell me."

There was no flow at the end of the letter, and some wet marks could be seen on the paper.

Qiao Yuchen's heart couldn't help but hurt: "What a stupid woman, I'm waiting for you, you must come back alive." ”

Looking at the box, there were three crystals lying there, two of which were black and one was blue, needless to say that the two black ones were definitely third-level zombie crystals.

Qiao Yuchen took out the three crystals, put the letter back, and received it in the system space along with the box, he could only temporarily seal it, and he still had a lot to do after that.

Qiao Yuchen counted the number of energy bodies: "There are still 290 energy points left after using temporary combat power last time, and they can be exchanged here, 170 points for the first level, 50 points for the second level, and 8190 points for the pseudo second level, which is a total of 8700 points." ”

"The first-level one can only be exchanged for 10 energy points, and the second-level one is 5 times, 50 points. Level 3 is 10 times that of Level 2 and can be exchanged for 500 points, and Level 4 is 10 times that of Level 3 and can be exchanged for 5,000 points. What about level 5, can it be exchanged for 50,000 points? ”

", if you get a fifth-level one, it's not cool, how do you want to exchange it."

Qiao Yuchen was very happy thinking, but was it so easy to kill a fifth-level zombie.

"System, except for the third-level crystal and the fourth-level crystal, exchange them all."

"Drop, the energy has been exchanged, and the remaining energy points are 8700 points..."

Qiao Yuchen was overjoyed: "Haha, now let me see what useful things can be exchanged." ”

As soon as his consciousness moved, the exchange machine appeared in front of Qiao Yuchen's eyes. Look at the exchange machine in front of you, which is the same as the vending machine.

"The first row, well, the price is all 5000, the second row, uh... The prices are all 6000. Third row..."

"Poof..."

Qiao Yuchen looked at the price first, and saw that Qiao Yuchen almost spurted blood when he saw the price in the third row, the lowest exchange price in the third row started at 10,000, and the highest was 300,000!

"Damn, let's look at the first and second rows."

Although the items in the third row were filtered, the items in the first and second rows still made Qiao Yuchen excited.

The things in the first row are all rewards after the completion of the previous tasks, including the five-four system, P-90, strength potions, and stamina potions, which can be exchanged for 5000 energy points, and there are more material sets and ammunition packs in the first row, which can also be exchanged for 5000 energy points.

The things in the second row are relatively expensive, the special healing medicine (small) is 6000 energy points, the alloy knife is also 6000 energy points, there is an alloy gate in the back, which requires 8000 points to exchange, and the alloy wall and soundproof wall require 7000 points.

These are all rewards in the task, and the last one made Qiao Yuchen excited, but the price made Qiao Yuchen entangled.

The G3 sniper rifle requires 9000 energy points.

G3 sniper rifle Qiao Yuchen still knows, it is a combination of accessories such as sniper scopes for the rifle, and now in the city, in fact, having this gun will definitely increase the efficiency.

It's just that his current energy points are only 8,700 points, a difference of 300 points, and if he exchanges the third-level crystal with the fourth-level crystal, he is not very willing.

Qiao Yuchen frowned: "Now there are second-level zombies outside, that is, you can get second-level crystals, and second-level crystals can be exchanged for 50 energy points." That means killing 6 second-level zombies... But the current situation is a little unfavorable for me..."

Qiao Yuchen once again looked at the items that had been rewarded in front of him and looked at them. After thinking about it, I finally decided.

"It's you......"