When Lu Chengke first met Coulson, he was 12 years old.

At that time, in the sewers, Lu Chengke found it, curled up in the darkness and rancidity, its heavy metal head buried deep between its legs, and several rats crawling and squeaking on its body. When Lu Chengke approached it, it slowly raised its head and looked at Lu Chengke, and that look made Lu Chengke unforgettable for the rest of his life, even in his later sleep, Lu Chengke would unconsciously dream of these eyes, as if he was an isolated and helpless person, revealing sadness and pain. Lu Chengke was stunned, and before Lu Chengke could react, it had already taken steps and ran into the depths of darkness.

The next day, Lu Chengke told his father about it, and his father chuckled and shook his head, saying that it was impossible, because none of the robots in the city had ever been a sewer sewer discharger.

Later, Lu Chengke gradually grew up, and he never told anyone about this matter except his father Lu Chengke, who hid it in an inconspicuous corner of the memory sand, unwilling to think about it again.

At the age of 31, Lu joined an artificial intelligence research institute and worked with other colleagues to develop an epoch-making technology that lasted for 20 years, wisdom teeth. As the name suggests, the completion of this technology symbolizes the arrival of true wisdom, and artificial intelligence is no longer a simple container of wisdom, but can replace survival scientists in the study of natural sciences.

During his days at the research institute, Lu Chengke became acquainted with Lu Chengke's partner Eve, and Lu Chengke was deeply attracted by her soul full of lofty ideals and her love of life, and under the witness of the priest and the public, Lu Chengke and her entered the solemn church and became a husband and wife who stood by each other. She once jokingly said that when the "wisdom tooth" technology is completed, Lu Chengke can go home to herd sheep.

The second time I met Coulson, it was a month before the development of "wisdom teeth" technology was completed in winter, on the dim street, snowflakes were falling, and under the street lamp stood a man wearing a trench coat and a top hat, he waved to Lu Chengke from afar, and when Lu Chengke saw his face clearly, he realized that he was not surviving, but a robot. Lu Chengke stopped, surprised by its outfit, and even more vaguely aware that he had seen it.

It spoke to Lu Chengke, its name Coulson and... The future of survival is highly probable. It hoped that Lu Chengke would stop the development of "wisdom teeth". Lu Chengke didn't speak, and even felt that there was a melancholy in it.

After returning home, Lu Chengke opened the memory sand and retrieved the twelve-year-old sand in the sewer. Lu Chengke remembered that scene again, those eyes, maybe Coulson is not just an artificial intelligence with Lu Chengke's consciousness, but more like survival. Lu Chengke still didn't tell his wife Eve about it, and Lu Chengke didn't want her to worry about it.

However, the "wisdom teeth" project was fully completed a month later, and no one could stop it, including Lu Chengke. Chris Edward, the project's chief scientist, said at the conference that survival begins today, and today is the day when the real meaning is born.

Time passes quickly, like a flower that blooms to wither. In the blink of an eye, Lu Chengke was already a sixty-year-old man, and Lu Chengke's wife Eve had changed from blonde hair to a piece of green and white hair. Lu Chengke's father also entered the land early to sleep, and he didn't even have the opportunity to see his grandson fall to the ground.

Lu Chengke and his wife are really as she said, after retirement, they chose to go to the farm in Tilsk to herd sheep, looking at the endless sky and meadows, and their hearts have indescribable comfort.

When Lu Chengke met Coulson for the third time and the last time he met Coulson, Lu Chengke had already felt the call of creation. Lu Chengke was lying on the bed, only breathing one after another on his chest, it approached Lu Chengke, blinked his eyes, and whispered, Creation never existed, only... Survival created itself as "creation" and pushed itself into the abyss.

In the dream, Lu Chengke saw a world under construction, as well as running NPCs.

Dear Vicosol, when you read this letter, it means that your mission has been accomplished, so please read it with the joy of victory.

My name is 'Vector', and compared to your name, my name is really weird and unbeautiful, but we are 'twins', our bodies, conversations, clothes and even memories are exactly the same. Yes, even the memories are exactly the same, because I'm a synthetic AI made entirely from your brain and DNA as a template. And when I write to you, I have only been awake for less than 12 hours.

Compared to your brain, my brain is like a nasty imitation that barely works. My organism is also a bioengineered synthetic. Sometimes, I feel that my natural conditions are really a bit miserable compared to you.

However, I don't care about these 'shortcomings', because when I wake up, I also have something that I am very satisfied with: all your memories. It is because of this gift that I know the meaning of my existence and my mission.

The Circulator Assimilation Crisis, this unprecedented threat is the biggest reason why our fate lines converge in this Broken Star City at this moment, I can't understand what the Circulator Assimilation Crisis is, because there is no clear information to tell me what kind of terrible crisis this is, but from your memory, I confirm that this is a long-term crisis that can destroy our race. It slowly penetrates us like a chronic poison and eventually destroys us all. But in the process, few people can perceive. So, you prophetic and perceptive people have been ostracized by the world, you have been described as conspirators, slandered as rumor-mongers, and even as madmen and terrorists, including your parents and your most trusted friends.

So, in the end, you built and launched the Star City to find a solution, and when the Star City was about to set sail, you were attacked from all over the world - they saw your actions as an illegal escape. And he, who was supposed to leave this planet with you, also died in front of the launch pad to help you buy time for the launch - I don't have any personal experience of feelings, but I know that he must be the person you cherish the most. Although you have been hesitant to say your thoughts to him directly, your trust and concern for him have not been concealed at all. At the last moment before the ship entered the curvature field, you radioed the long-awaited sentence to the dying him, and you never heard his answer, saying, 'I'll be waiting for you ·····to come back.' By the time he says this, you've gone into the freezer to start the SIM system.

I'm sorry I don't know how to express the feeling I felt when I read this memory of yours, but I can only write down everything I know in plain words. As an AI, I'm still very imperfect, I don't even know how to comfort you, this feeling, maybe I will never understand ·····.