The Arctic saw its return a year later.

At that time, she had already passed the final assessment of Adel Crystal and obtained the permission to enter and exit the greenhouse freely.

The transparent blue Adel shield opened a corner, and the world closed to 99.9% of the people was presented to her, and she rushed out in the flying boat without hesitation.

She agrees to implant the Adel Crystal, not only to conduct routine investigations outside the greenhouse, but also to search for the lost city in Cloudsdale.

In the data of the twelve city-states and Skynet, there is no trace of the existence of Cloud City.

The only connection to Cloudsdale is the Source World.

But for more than 100 years, the intelligent brain of the AI source world has disappeared into history, and only branch systems, such as Skynet and Prophet, are still running.

The purpose of finding the source world is to find out if her parents left her guidance in her last days.

At that time, Beibing didn't know that volunteers like her, who wanted to become the guardians of civilization, once they met the "fate", it meant eternal loneliness.

Loneliness is the fate of the guardian of civilization.

But in the end, she failed to become a guardian of civilization, because "fate" appeared.

I don't know when it began, but Guisheng began to partner with her, patrolling and exploring with her near the ruins of what appears to be Cloudsdale.

At that time, they were only sixteen or eighteen years old, if more than a hundred years ago, they were still a hard-working high school students struggling in the college entrance examination question bank, but now, they have become a weapon with great lethality in the cross base.

Arctic Ice and Guisheng are second-generation evolutionary species, but they are lucky not to be infected by the red mist, and the resonance between Arctic Ice and Adel Crystal is so high that they have been booked by the Cross Base as the civilization watchdog of the SA19 colonization planet.

Guisheng has not yet passed the final assessment, but the reason why he can't become a civilization watchdog is not only that, but also the most important point, the second-generation evolution species that can completely fuse Adel crystals and are not infected by the red mist is extremely rare, and the civilization watchdog starting with "G" already has Arctic Ice, so it is impossible for the Guisheng numbered G12 to leave the cross base.

In 2191 A.D., Guisheng at this time did not know that the Arctic became the guardian of civilization, which was already a foregone conclusion.

"There's nothing special outside of the greenhouse, why do you keep thinking about going outside?"

On the way back to the cross base, the teenager who had been writing the investigation transcript suddenly looked up and asked.

Beibing, who was sitting in the cab, looked back at him, his eyes were a little strange, the gaze was too strange, which made the young man a little uncomfortable, so he turned his head and pretended to look at the scenery.

She turned back, not answering, and walked through the Adel shield to turn on the automatic flight mode.

On the way over the twelve high walls of the Cross Base, she asked, "Guisheng, haven't you heard a word?" ”

The young man asked nervously, "What words?" ”

"People are sometimes pitiful, the people who like them can't get it, they don't cherish what they get, the doubts they get together, the nostalgia they miss, the nostalgia they want to see, the hatred of seeing each other late, all their lives are full of regrets."

"Huh?"

"Return, because you have no regrets, you have never looked back."

And she has regrets.

The crooked Guisheng naturally can't understand why she wants to pursue the civilization and history of a hundred years ago?

The past is gone, and what we have now is far more important than an ethereal memory, isn't it?

"You won't understand." She said.

Guisheng was born in 2167 A.D., an era when the genetic engineering codenamed "Star" made a breakthrough, and Dr. Kita, as his mother, naturally used the research institute of the Cross Base to transform him.

For the first fifteen years of his life, he spent the first fifteen years of his life alone in the control room of the research institute, and almost all the people he met wore uniform white shirts, and he was extremely wary of him.

Until three years ago, the North Ice arrived, and became "of the same kind" with him.

Since he was a child, he has been instilled with concepts like "natural selection and survival of the fittest", and his impressions of the world are all established from the story of a doctor who claims to be his mother, and there is no logic.

So, when he first met Beibing, he asked a question that made Beibing scratch his head.

"Where are you from? Ant-Clan? Tiandu? Or a greenhouse? ”

“…… What the? ”

The young man's eyes lit up, and he said with great interest, "We live in a greenhouse on the back of the ant clan, and outside the greenhouse there is a city called Tiandu, and there is a flame in the center of the city that will never be extinguished. With that flame, the ark can sail in the sea of stars, and the seeds of civilization can be saved. ”

"The doctor also said that the purpose of my existence is to merge with that flame."

"......" Beibing looked dazed.

Later, she learned that this teenager, who grew up in a scientific research institute, had no understanding of human feelings and knew nothing about the truth.

When she understood what the story was about, she got to know Dr. Kita better.

What kind of cold-bloodedness can make your children sacrifice for the "agreement"?

But she didn't plan to explain it to Guisheng, and she didn't want to tell him what the truth was.

Not only did she not accept his kindness, but she also took amnestics very decisively.

Arctic thought she wouldn't be a partner with him, but after Crystal's assessment, he became her partner, and because of the amnestic, she forgot that her partner had a little affection for her.

Do I hate it so much? When Guisheng thought about it, he was a little unhappy.

Do you have to fight to prove that you can walk side by side with her?

No, he thought.

His Adel crystal is still being evaluated, and he can't fight with her yet, otherwise not only will he not even be able to make a partner, but he will even have problems passing the evaluation.

"I don't need you to answer, I don't need you to accept it, as long as you listen quietly."

"I like you, Arctic."

At the end of the message, Beibing looked at the bellflower letterhead on his windowsill, his eyes were cold, and with a slight movement of his fingers, the letterhead was thrown into the shredder.

She opened the private communication, "Guisheng, have you heard of Cloudsdale?" ”

Guisheng immediately asked, "Cloud City, what is that?" ”

"Tiandu is also a candle moon." She said.

That story is the fate of rebirth.

People are not plants and trees, who can be ruthless?

She couldn't help but feel some sympathy for him.

But sympathy alone wasn't enough for her to see as a companion.

"Guisheng, I will always remember you."

I will remember you and the sacrifices you made for this world.

So, you just go ahead and do it.

Don't wake up, don't know the truth, sacrifice full of honor.

"Beibing, did you promise me?" The young man asked eagerly, his voice full of irrepressible joy.

Through the glass, when I first met him, Dr. Bei Yu said, give him a little time, he is still a child.

But he's going to grow, so, just wait.

"No, I'll still clear my memory." With that, she ended the communication.

As long as the rebirth is gone, the heart will not be shaken.

Time will wear it all.

Wait for a hundred years to pass, and then recall this past, and there will be no more gains and losses for anyone's departure.

Yes, right? She asked herself.