It took An Nan five days to come to the provincial capital of G Province. During this period, he became familiar with the mercenaries of Yan Yishan. After all, they were on the same road, and sometimes they encountered traffic jams or zombies on the road, so they had to cooperate. After a while, they could barely be considered companions.

Another reason An Nan is willing to contact them is that their views are more consistent. To put it more clearly, they are clear and rational enough to not sympathize or kill innocent people.

"I'm going to find my own territory, you can do it yourself!" An Nan said to Yan Yishan and the others, waved his hand at them, just as saying goodbye.

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

"Provincial Biological Research Center." An Nan said.

"You want to collect the instruments and equipment there? It's not bad. Maybe it can be used to exchange resources in the future." Yan Yishan thought for a while and said, no wonder he thought so, because An Nan didn't look like a researcher, and of course he wouldn't think of An Nan's purpose of going there.

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

"Puff!" Xiaozhou couldn't help laughing and said to An Nan: "Miss An Nan, not everyone can develop vaccines. Have you done research before?" As he said that, he looked at An Nan suspiciously.

An Nan gave him a blank look and said with confidence: "Of course, if I can't even develop it, I won't think about other people!"

Seeing that she was so confident, Xiaozhou was embarrassed to say anything else. If it hurt her confidence, it would be bad. In this world, it would be good to have a great ideal.

But An Nan thought he believed 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."

"Okay, okay!" Xiaozhou agreed in a stack of voices, but did not take it in his heart, but did not expose her at that time.

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

The Biological Research Center is not in the city center, but in the suburbs. Such an environment is more convenient and safer in the era of zombie explosions.

In the suburbs, it means there are fewer people and fewer zombies, which is safe enough; in the suburbs, there are also large areas of land belonging to research centers, which makes it more convenient for Annan to do research and experiments.

An Nan first wanted to solve the problem of water quality. As the end of the world became longer and longer, the water quality gradually changed. Now, the impurities and viruses in the water have just evolved and have not had an impact on people for the time being, so no one has appeared yet. But soon after, when the person who drank water also turned into zombies, someone would pay attention to the problem of water quality.

Before the research of drugs to purify water quality was made, survivors were safe only by the water released by the water-drinkers and the pure water and beverages produced before the end of the world. However, there were not many water-drinkers, and pure water and beverages were limited and could not be supplied to everyone. Therefore, many people either died of water that was easily infected or died of thirst.

An Nan cleaned up the zombies from the Biological Research Center, and this place became her own world.

Basically everything she needs can be found here. Even if some of them are not found, An Nan will drive to the city to look for them, so she is not worried about the lack of raw materials for medicine.

An Nan took the sample from the river in the suburbs and focused on studying it for more than half a month, and finally developed a drug that can purify water quality. In the original owner's world, many people were researched after more than three months. Moreover, the cost of making the drug is not low, which has caused the strain of water resources and the living environment of survivors is even worse.

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

After solving the problem of water, An Nan no longer needs to pay attention to drinking water every day. She can enjoy it as much as she uses. However, she is too deserted here and no one comes here, so she cannot promote Water Purification No. 1 for a while.

A month later, when An Nan was about to solve the soil problem, the research center finally welcomed the first batch of guests - still acquaintances.

The security guards of the research center have been transformed by An Nan long ago. Now she is the only master here. Without her consent, no one can come in.

Police Ling at the gate of the control research center sounded. An Nan put down the test tube in his hand, glanced at the surveillance camera, and saw a group of familiar people. She smiled slightly and the business came.

"Sister An Nan! You are indeed here!" Yan Lin said to An Nan in surprise, "We were afraid that you had left here before we came."

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

"Sister An, have you developed any useful things?" Xiaozhou looked at the terrifyingly quiet and asked An Nan.

An Nan nodded proudly and said, "Of course, I have already developed the No. 1 of Jingshui has been developed."

Yan Yishan stared at her suddenly, stared at her, and said, "You have any water quality problems, too?"

"Yes, you see, everything has changed when the end of the world comes. Will water, a life resource, be spared? As soon as I come here, I began to pay attention to water quality issues." An Nan said seriously. In fact, she knew this from the original owner's memory.

Yan Yishan frowned slightly, stared at An Nan, and said, "Now many survivors have lost their lives because they drank contaminated water. Those bases have realized this problem and have started researching it, but there is no result yet. What you said is "Purification Water No. 1" can really solve the problem of water?"

"Of course, the water I drink every day was purified with Purification No. 1. Isn't it healthy now? Of course, if you don't believe it, I can give you some medicine and let you test it." An Nan said generously.

"This is the best. If it is really useful, I will make a deal with you." Yan Yishan nodded.

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

Seeing that the main thing had been done, Xiaozhou swallowed his almost dry saliva and said to An Nan: "I believe that Sister An Nan will not lie to us. Now you are living well, so I also believe that your Water Purification No. 1 is really useful. Can I let me drink some water now? If I don't drink water, I will die of thirst from my brother!"

Xiaozhou looked at An Nan with a hurried look. Seeing that he believed in him so much, An Nan happily raised a large bucket of water he had evolved, took out more than a dozen cups, and said to them boldly: "Drink if you want, drink as much as clean water!"

Xiaozhou immediately took a cup without hesitation, scooped a glass of water, drank it off, and then drank several more cups in one breath, then he let out a long breath and burped comfortably.

Seeing that he was drinking so happily and was lively, the rest of the people started drinking without hesitation, not caring about anything.
Chapter completed!