The end of the world is a disaster caused by both natural disasters and man-made disasters.

After bringing back the living people from Zhou Island, Zhou Island became a world of zombies.

On October 25, 20XX, the Flower Country launched a huge XX-type bomb and dropped it on Zhou Island, destroying it instantly.

This time was remembered by people in later generations, and from that day on, they began to welcome a brand new world.

With Qian Osbai's notes, research formula records, etc., the research results of the Flower-Growing Country are very significant.

After two years, they successfully developed a drug that can transform zombies into normal people.

And it was officially named: Vitality.

This day.

Xu Bai and Ji Heng were standing at the edge of the hospital in Rongcheng, watching these "people" lining up in long queues, each one taking medicine and getting injections.

This medicine needs to be taken continuously for several months.

People who have taken the drug do not remember that they had turned into zombies, nor do they remember anything that happened before the end of the world, nor do they remember their last names or names. They are like a newborn baby, full of curiosity about the world they live in.

This is a side effect, but everyone also tacitly hopes that they will not remember all these disasters.

Becoming a zombie was not something they could choose.

Maybe I'd be better off not remembering.

The recovered "people" did not only have this one side effect, they also lost their reproductive function.

In response, medical researchers and other personnel also expressed that they had tried their best and this was the best result.

"Ding, congratulations to the host for completing 95% of the plane promotion. Please keep up the good work. The countdown is three years and seven months."

When the system reminder sounded, Xu Bai quickly pulled out the system panel. When she saw the remaining 5%, she breathed a sigh of relief and picked it up again.

Five percent may not seem like much, but there are only three years left. Can it be achieved?

Entering the era of scientific research

This is a difficult standard to estimate.

Xu Bai held an emergency video conference and relayed the news to everyone.

Everyone reconfirmed the future research direction and will try their best to catch up with this 5%.

In addition to scientific research, Xu Bai also established a brand new school in Rongcheng to teach knowledge to these rehabilitated people.

Xu Bai once found a book during the zombie era and put it to good use. She printed several copies of the book and distributed them to various cities.

Before "vitality" was developed, the gates between domestic cities were not opened, and people traveling to and from Dawn City were afraid of staying in Rongcheng, the zombie city.

Although everyone knows that the zombies inside can live like normal humans, everyone is still worried that something might suddenly happen, and they might be hurt by the zombies and become a member of their zombie city.

But only after the country was declared free of zombies did people try to move around and carry out infrastructure construction in their cities every day.

As for the children who survived, they not only learned cultural knowledge in their courses, but also learned various skills such as fighting, medical treatment, and farming.

The zombie era is over, but they still face the danger of beasts.

Fighting class is a compulsory course for everyone.

While the infrastructure is being built, a statue of Xu Bai will also be built to express gratitude for his efforts and assistance over the years.

Xu Bai was lying on the bed refreshing his phone. When he saw the picture of his own statue, he couldn't help laughing and sent a message to Ji Heng to share the picture.

After chatting for a while, Xu Bai looked at the system.

In the existing system, it is no longer just a cloud of fog as it was earlier. Now it has been cultivated into a human form, but it is difficult to tell whether it is male or female.

Xu Bai ignored the system and looked towards the store.

Her early goal was to get herself a human heart, but when she saved enough money, she gave up the idea.

The five percent index kept flashing in Xu Bai's mind.

Xu Bai used all the energy in his hands to purchase everything related to the interstellar plane from the system store, leaving aside what he had purchased before, from small items like travel to large items like weapons.

With these, the Flower-Growing Country began unceasing imitation research, working day and night, racing against time.

…

Three years.

In the last month of the countdown,

The system's promotion plane index finally increased from 90% to 100%.

"Ding, the current plane has been transferred from the first level to the second level. The planet is about to be named. Please name the planet."

Xu Bai was in a meeting with others, listening to people from other cities reporting on the current infrastructure progress, when he suddenly heard the sound of a system upgrade.

Xu Bai stood up excitedly, attracting everyone's attention. You know, their city lord Xu Bai is usually a calm person.

"It worked. We succeeded."

"We have successfully advanced to the second level!"

Xu Bai was excited. Although she felt a little unwell, she couldn't control her emotions at this moment and hugged Ji Heng. Ji Heng was happy, but more worried about Xu Bai's physical condition and comforted Xu Bai.

God knows as we enter the final months of the countdown.

Xu Bai's heart was always in his throat.

Their current technological strength is far greater than before, but they still haven't received any news of successful promotion.

In the last month, Xu Bai was even more nervous.

But I also know that I have tried my best and done everything I should do.

Just yesterday she had persuaded herself to relax, and today she received good news.

Xu Bai smiled and slowly calmed down.

"Is there good news from the research building?"

Just as Xu Bai finished speaking, her phone rang. After answering it, the figures of the staff from the research building appeared in front of her.

"We lived up to the mission and successfully developed the protective net."

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