It took An Nan five days to come to the provincial capital of G Province, during which he also got acquainted with Yan Yishan's mercenaries, after all, they were on the same road, and sometimes they encountered traffic jams or zombies on the road, and they had to cooperate, and they could barely be regarded as companions when they came and went.

Another reason why An Nan is willing to contact them is that their three views are more compatible, to make it clear, they are sober and rational enough, they will not indiscriminately sympathize, nor indiscriminately kill innocents.

"I'm going to find my own territory, you can do it yourself!" An Nan said to Yan Yishan and them, waved his hand at them, and regarded it as a farewell.

"Where are you going?" Yan Yishan asked her.

"Provincial Biological Research Center." An Nan said.

"You're going to collect the instruments and utensils there? It's not bad, maybe it can be used to exchange resources in the future. Yan Yishan thought about it and said, no wonder he thought so, because An Nan didn't look like a person who was engaged in research, and of course he wouldn't think of the purpose of An Nan's going there.

An Nan shook his head and said, "I plan to take root there, develop various vaccines, and other survivor bases will ask me to sell vaccines to them in the future." ”

"Poof!" Xiaozhou couldn't help but laugh, and said to An Nan: "Sister An Nan, not everyone can develop a vaccine, did you do research before?" As he spoke, he looked at An Nan suspiciously.

An Nan glanced at him and said confidently: "Of course, if I can't develop it, let alone others!" ”

Seeing that she is so confident, Xiaozhou is embarrassed to say anything, if it hits her self-confidence, it will be bad, in this world, it is good to have a great ideal.

An Nan thought that he believed in his ability, so he said: "When I develop a vaccine in the future, you can come to me to make a deal." ”

"Good, good!" Xiaozhou agreed one after another, but he didn't take it to heart, but he didn't demolish her at that time.

After saying goodbye to the friends who met in Pingshui, An Nan went to the Biological Research Center.

The biological research center is not in the city center, but in the suburbs, which is more convenient and safe in the current era of zombie outbreaks.

In the suburbs, it means that there are few people and zombies, which is safe enough; There is also a large area of land in the suburbs that belongs to the research center, which is more convenient for Annan to do research and experiments.

Annan first has to solve the problem of water quality, as the time into the end of the world is getting longer and longer, the water quality has gradually changed, and now the end of the world has not long begun, the impurities and viruses in the water have just evolved, and there is no impact on people for the time being, so no one has found it yet, but soon after, when the people who drink the water have also become zombies, no one will pay attention to the water quality problem.

Before the research of drugs to purify water quality, survivors were only safe to drink the water released by the water adepts and the pure water and drinks produced before the end of the world, but there were not many water adepts, and pure water and drinks were limited and could not be supplied to everyone, so many people either drank the water that was susceptible to infection and died of thirst.

An Nan cleaned up the zombies in the biological research center, and this place became her alone.

Basically everything she needs can be found here, and even if some can't be found, An Nan will drive to the city to find them, so she doesn't worry about running out of medicinal ingredients.

An Nan took a sample from the river in the suburbs, studied it intently for more than half a month, and finally developed a drug that can purify water quality, in the original world, the drug that can purify water quality was studied after more than three months, and the cost of making the drug is not low, which causes a shortage of water resources, and the living environment of the survivors is even worse.

The drug that Annan is now researching has simple raw materials, low cost, and is more convenient to apply, and Annan calls this drug "Water Purification No. 1".

After solving the problem of water, An Nan no longer has to pay attention to the amount of water and water used every day, and can enjoy it to the fullest, but she is too lonely here, no one comes, and she can't promote Water Purification No. 1 for a while.

A month later, when Annandu was about to solve the soil problem, the research center finally welcomed its first guests—still acquaintances.

The security of the research center had long been modified by An Nan, and now she was the only owner here, and it was impossible for anyone to enter without her consent.

The police officer who controlled the gate of the research center sounded, An Nan put down the test tube in his hand, glanced at the monitoring, and saw a group of familiar people, she smiled slightly, and business came to the door.

"Sister Annan! Sure enough, you're here! Yan Lin said to An Nan in surprise, "Before we came, we were afraid that you would have left here." ”

"I won't leave, this is my territory." An Nan said, welcoming them in.

"Sister An, have you researched anything useful?" Xiao Zhou looked at the frighteningly quiet research center hall with interest and asked An Nan.

An Nan nodded proudly and said, "Of course, Pure Water No. 1 has already been researched by me. ”

Yan Yishan stared at her fiercely, stared at her, and said, "You also found that there is a problem with the water quality?" ”

"Yes, you see, when the end of the world comes, everything has changed, will water, a resource of life, be spared? As soon as I came here, I started to pay attention to water quality. An Nan said seriously, in fact, she knew this from the memory of the original owner.

Yan Yishan frowned slightly, stared at An Nan, and said: "Now many survivors have died because of drinking contaminated water, and those bases have realized this problem and have begun to study it, but there is no result for the time being." Can the 'Clean Water No. 1' you say really solve the water problem? ”

"Of course, the water I drink every day is purified with Purified Water No. 1, isn't it healthy now? Of course, if you don't believe me, I can give you a little medicine to try. An Nan said generously.

"That's the best, and if it really works, I'll make a deal with you." Yan Yishan nodded.

An Nan used a small test tube to fill the powder of Purification No. 1 and handed it to Yan Yishan.

Seeing that the business had been discussed, Xiao Zhou swallowed his almost dry saliva, and said to An Nan: "I believe that Sister An Nan will not lie to us, now that you are alive and well, then I also believe that your Water Purification No. 1 is really useful." Can I get some water now? If I don't drink water, my brother and I will die of thirst! ”

Xiao Zhou said that he looked at An Nan with a blank eye, and An Nan saw that he believed in himself so much, so he happily brought out a large bucket of water that he had evolved, generously took out a dozen cups, and said to them heroically: "You can drink as much as you want, as much clean water as you want!" ”

Xiaozhou immediately unceremoniously took a cup, scooped up a glass of water, and drank it with a grunt, and then drank several more glasses in one go, and then he breathed a long sigh of relief and burped comfortably.

The rest of the people saw that he was drinking so happily and jumping lively, so they also drank unceremoniously and drank it separately, not caring about anything.

Yan Yishan, who was the only one who was still sane, looked helpless when he saw his group of brothers who were so thirsty that they turned into buffaloes, they really believed in An Nan - he couldn't help but drink it himself, thinking to himself, he wanted to die together!