[Comprehensive] Infect the whole world

After treating Gilgamesh honestly, Yuto Kuroki ignored him and began to study how to use the power of the Holy Grail to build Chaldeas.

The Holy Grail, that is, the right to make a wish of the third law has been handed over to Yuuto Kuroki himself, which means that Yuuto Kuroki can use the power of the third law to copy the soul data of the earth at any time, and even directly make Chaldeas .

But Yuto doesn't want to do this, it's very simple, because the cost performance is not high.

Something like the third method can be said to be an extremely huge energy. Although it cannot be said to be omnipotent, it is enough to do many things. Facts have proved that Chaldeas can be constructed by human power, and Kuroki Yu Dou also has the help of the black technology of Plague Company, such as the panel. He would not waste a chance to make a wish.

'Panel, directly analyze the third method in the Holy Grail to see if it can directly copy Gaia's soul data. '

【Analyzing--】

[Analysis complete! 】

Really can.

Kuroki Yuto heaved a sigh of relief, opened his eyes, and opened his palms.

Amidst the bewildered expressions of the crowd, a phantom of the soul of the earth slowly appeared in the young man's hands out of nothing.

"Is this Gaia?"

Kuroki Yuto stared at the sphere that looked like a miniature version of a globe, thought for a moment, and injected his own virus seeds into it.

'panel, start simulating different evolutionary routes. '

[Understood, evolution begins. 】

The first route is to fully develop the symptoms of optimism and hope in the worm virus, and eliminate the negative factors in human nature.

It was not bad at first, and the life span of human beings continued to increase steadily, but then, troublesome things came.

Human science and technology stagnated for a full 100 years. Human beings lost their motivation to keep moving forward after losing their passion. The number of scientists continued to decrease. Most people chose not to go out to work. Out of kindness, human beings released most edible animals, which also led to the death of meat. There is a serious shortage of egg food, and the population is increasing, and food is in short supply, but most people still have a strange optimism, and finally starve to death at home.

The last straw that crushed mankind was a sudden outbreak of plague. Due to the slow progress of medical technology and the shortage of doctors, human beings are busy enjoying themselves in time, and they would rather enjoy themselves on the last day of their lives than work hard. research knowledge.

Human beings lack greed for life, no negative emotions, no fear of death, and no desire to persist in survival.

[The first evolutionary route failed, and the lights of human beings will become extinct in 200 years. 】

The earth on Kuroki Yuuto's palm spreads a black and red curtain, symbolizing the extinction of human civilization. When the last bit of blue is swallowed up, there will be no living people in the world anymore.

Failed.

Yuuto Kuroki thought for a moment, set the first evolutionary route as number Alpha, and continued to try different evolutionary routes. This time he decided to use different routes as much as possible in the derived pathology.

As a result, it failed.

third time, fail

……

hundredth time.

This is also the longest time that Chaldeas speculated that the lights of human civilization lasted, but no matter how carefully Yuuto Kuroki maintained them, the lights of human civilization were still extinct after 1000 years.

This time, Yuuto didn't record the route this time, but stared at the earth simulator in deep thought.

There is no point in trying any more.

Out of 100 times, no one can successfully save human beings. This is no longer a matter of probability, but a problem of the virus itself.

But this time, Kuroki Yuuto didn't feel depressed, or hopeless and confused. Instead, he felt a kind of relief as expected, as if the question that had puzzled him for a long time was finally answered.

Ten years from now, the World Line self will feel hopeless. I’m afraid I already know it. No matter how hard I try, it’s impossible to save mankind. This is the fact, and it’s irreversible. Yuto Kuroki himself also failed as a 'salvation virus'.

After ruling out all the possibilities, no matter how unwilling the remaining one is to accept, it is still a fact.

That is the worm virus code-named 'Black Tree Yuto'. From the very beginning, there is no possibility of saving the world. As a world-saving virus, it has absolute flaws fundamentally, and it is an irrefutable and irreparable flaw.

But this point, it is impossible for the people of Plague Company not to know, if he really has no chance of success, how could those rigorous scientists let him be born or even enter the experimental stage?

'Can you give me an answer to this question?Panel' Yuuto Kuroki asked in his heart.

【…】

[This is fundamentally our mistake. 】The electronic sound of the panel has become muffled, and strong artificial intelligence has begun to have the emotional characteristics of human beings. For example, Kuroki Yuuto can hear a hint of guilt from the sound of the panel.

[Yuto, there is one thing that has been hiding from you. Your genes are actually incomplete. 】

'...? '

[Do you still remember the father of the old virus? He used to be the leader of the Plague Company's old virus generation laboratory. Countless viruses with the potential to destroy mankind were born under his hands. The former virus designer of the Plague Company...is also your creation By. 】

Yuuto Kuroki was obviously stunned for a moment: "Wait, I remember that the research time of the worm virus project was after he defected?"

[This is modified. In fact, he defected in the second half of the worm research. At that time, he took away most of the company's virus research materials after defecting, and tore apart the gene fragments of the worm that was about to be completed. Take it away, and destroy that part of the data. 】

[You are not wrong, your genes are incomplete, because that man was the chief designer of your research at that time, after he left, the research hit a bottleneck, and it took two years for other researchers to barely repair you, but was There is no way to restore the part of the gene fragment that is taken away, which means that your gene is incomplete. 】

Is this the truth?

Yuuto Kuroki felt dizzy for a while, helped his forehead, and asked calmly, "Why didn't you tell me?"

[Because this incident was sealed by the high-level, everyone can no longer mention news related to that man. ] The panel nana said [Actually, if you hadn't noticed the truth, I should not have the authority to tell you. 】

"...I'm the only one who doesn't know?"

【what? 】

"Saving human beings is impossible, the new virus experiment is doomed to fail." Yuuto Kuroki sneered softly from his throat, "Have you been watching my jokes?"

【…】

The panel fell into a long silence, and just when Yuuto Kuroki thought he would not speak again, a hoarse electronic sound sounded again.

[Theoretically speaking, the probability of your failure is 99%, 'The worm virus is destined to be a defective product without the other half of the gene segment. It is better to start another old virus research project than to waste research funds on failed products. ’ At that time, there was no such voice in the company, but in the meeting of the researchers, 90% of the people expressed their opinion to continue the new virus project. Even if the probability of failure was 99%, they chose to block their hopes on the last 1%. 】

[Because the new virus itself represents a miracle, the miracle of the harmonious coexistence of viruses and humans, so the researchers decided to believe that you can create miracles, and they bet you to win. 】

"..."

Kuroki Yuuto opened his mouth, but didn't know what to say.

It's just that a strange force suddenly poured into the chest, the heart that had been cooling down gradually warmed up, and the constant heartbeat accelerated little by little, and even the blood became hot.

What is this mood?How can I express it?

Kuroki Yuuto was absent-minded for a moment, until a sudden force came from his wrist, which woke him up from his mind.

Focusing on reality, Yuuto realized that Arthur appeared in the church at some point, and even grabbed his wrist at close range.

"Arthur? Why are you here?"

"I came in a long time ago, and I saw that you were all in a daze, so I planned to observe the situation." Arthur looked at the illusory sphere in Kuroki Yuuto's hand, raised his eyebrows, "This is the result of your wish ?”

"...Not really."

Kuroki Yuuto looked around.

During his crazy experiment just now, he didn't pay attention to other people's movements. Only now did he realize that the church was very lively. Not only Arthur was there, but also Fujimaru Tachika and Mash whom he had seen before. ...and Emiya Kiritsugu sitting in the farthest corner.

Emiya Kiritsugu's appearance was also expected by Yuuto Kuroki. Even if he loses the qualifications of Master, with this person's persistence, he might crawl to the Holy Grail. Guess he will find other spirits to join.

Needless to say, Weber has lost his master status, Fujimaru and Mash are not participants in the Holy Grail War, and Arthur is a non-standard Heroic Spirit.

But having said that, they all appeared here, probably to see the final wish of the Holy Grail, right?

Just as Kuroki Yuto expected, Kotomine Kirei saw him wake up, and took the initiative to explain: "They want a Kanju." He paused, his eyes tangled for a moment, "The moment when your last wish comes true."

"Yuto, did the wish succeed?" Amakusa Shiro asked softly from the side, he had seen the series of changes in the boy's face before, and couldn't help feeling a bad premonition.

Under the gaze of everyone with their own thoughts, Kuroki Yuto shook his head with a heavy face: "It failed, just like Fujimaru Tatsuka said, according to the original plan, the Human Council will usher in destruction."

Fujimaru Tachika immediately breathed a sigh of relief: "So, have you finally given up on this idea?"

"Give up? Who said that." Kuroki Yuto smiled slightly, "I will never save the ideal of human beings, but I need to find a way to really complete this plan for the time being."

"It's going to be a long journey and I have to leave for now."

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