"Land of Steel".
An extremely heavy name.
A world where no living things can survive. This is the name of the current world.
It is not an official name, but a common name among the "people" living on the desolate earth, used to refer to the dying star, the dying earth, and the complete end of the century.
As the name of the Land of Steel suggests, most of the continent is now a cracked wilderness covered by gray and white clouds. It is impossible to grow food, and the atmosphere is no longer as suitable for animal survival as it used to be.
Yes, this is the distant future, the end of the Earth.
In a sense, planets are also a form of life. Although their lifespan is extremely long compared to the short-lived humans, they will eventually die.
The Earth was dying, and Gaia, the restraining force, also disappeared. Before disappearing, it called on its compatriots, the UOs from other planets in the solar system, to exterminate all life on the planet.
UO, the abbreviation of Ultimate ONE, is the strongest life form on each planet. Each of them has the terrifying ability to exterminate all the existing life forms in the world with their own strength. They don't have a name themselves, but are named by the remaining humans, just like "Earth of Steel".
That's right, even if the planet is doomed, the human species cannot be exterminated, and they still survive by relying on advanced civilization technology. This also means that the long-term balance and struggle between the two major restraining forces "Gaia" and "Alaya" has finally come to an end, and "Alaya" has won the final victory.
However, the price was extremely heavy. The mother planet died, the ecological environment was completely changed, and human civilization was also severely damaged. It was dying on the destroyed land, and lived under the threat of UO every day.
Without a doubt, this was an extremely bad ending.
Moreover, this is the inevitable ending for all parallel worlds - powerful beings such as "Gem Lord" and "Night of Varzia" have foreseen this ending.
In order to avoid this ending, "Valzia Night" kept calculating, but he couldn't get the answer no matter what he tried. Finally, he placed his hope on the legendary "sixth magic" and became a vampire.
The same is true for "Gemstone Man". In his opinion, although he has not found a way to avoid it, that ending can definitely be avoided. The reason is simple. Among the nine planets in the solar system (currently it is 1999, and Pluto has not been expelled), the Earth is not the oldest, so it is obviously not a natural death. Since it is not a natural death, it is possible to avoid it.
To this end, he used the second magic "Parallel World Interference" to constantly shuttle through world lines and conduct various experiments. Countless failures, countless summaries, countless re-starts, the accumulated data and experimental reports can fill an entire library.
The time traveler who goes by the alias Shirou is a friend he met during his continuous time travel. The time traveler now named Shinji Matou is also one of his experimental subjects, and a very special one.
"Because I'm from the same place as you?"
After listening to Shirou's narration, Shinji was thoughtful.
"This is just part of it. To be more specific, it is outside the Type-Moon Universe and within the concept of Earth. The former makes you an unpredictable variable - with variables, the outcome can change, whether it is good or bad, the most feared thing is to remain unchanged. The latter ensures that you can smoothly integrate into the Earth and will not be rejected because of being "foreign". You don't need to delve into the specific principles for the time being, after all, I have only figured out the tip of the iceberg of the multiverse."
"I understand. If you can't reach that level, don't touch things at that level—just tell me what I should know."
This answer made Shirou very satisfied.
"I feel relieved with your attitude. It's worth it for the old gem to throw you into that special world line."
"A special world line? For example, the survival of Justisa?"
"This is just one of the special features. There are also many other special features. For example, Dead Apostles and Servants. Dead Apostles are the enemies of human nature, while Heroic Spirits are the defenders of human nature. The two are in opposition. Therefore, in the world line where the system of "Servant Summoning" is circulated, the power of Dead Apostles will be weakened. In the world line of "Fate Zero", the power of Dead Apostles is far less than that of "Tsukihime", and the list of the twenty-seven ancestors is also different. The most important thing is that Roya, the origin of the story of "Tsukihime", was also killed by Edmond Dantes when he was alive."
"Huh? Is there such a setting?" Shinji was stunned. "Then if I ask Aozaki Touko to go to the Tono family to look for Roya, wouldn't it be a waste of time?"
"Didn't I tell you that? The world line you are in is special. It is a flask that contains all the elements that I and the old man Gem can add. Whether it is "Tsukihime" or the Fate series, it is one of the elements, so Roya still exists."
"I see."
"Oh, by the way, there is one thing I want to remind you - although it has successfully combined various elements, it is not the original world line after all, and with you as a variable, I don't know what changes will happen next."
"Don't you have the right to use Mooncell? How come you don't know?"
"I haven't observed that world line since it was formed. After all, it's a man-made world line, and it's not as stable as ordinary world lines. Even if I just observe a super large variable like me, it may cause a bad influence."
"So this world line is fine?"
"No problem, because it is a normal derived world line." Shirou sighed helplessly, "But now more than 70% of my body is alien. In an exclusive Earth like the Type-Moon World, as soon as my real body appears, it will be attacked by the joint forces of the two major restraining forces. In the end, I can only enter the Earth in this way."
"That doesn't sound like a good way to go about it?" Shinji thought.
"Of course. It's not that easy to replace a Servant. He is a Heroic Spirit who has left his name in human history. Even Mooncell's power cannot interfere. First, they must be compatible, and second, they must cooperate voluntarily."
"Voluntary?" Shinji looked surprised. Amakusa Shiro Tokisada was so determined that he was willing to be replaced. "How did you do that?"
Shirou chuckled, like a weasel who had successfully won a game of chicken: "I showed him "Fate Apocrypha" - the adapted version. Then I told him that he had the power of inhibition, and he couldn't succeed. But if I tried, there would be a slight chance."
"You are so cruel!" Shinji was convinced, completely convinced.
Amakusa was willing to do anything to save humanity, including his own life. When he chose Semiramis as his Servant, he was ready to be made into a puppet by her. When he knew that his wish could not be fulfilled, it was not difficult to guess what choice he would make.
"But even if he gave up his existence, his obsession remained in my spiritual base, constantly reminding me to seize the Greater Holy Grail and save humanity. Especially after I hid from the Greater Holy Grail, that obsession almost made me restless for a moment, forcing me to make that wish. He is worthy of being a saint who can endure for sixty years. Just for this, let me toast to him!"
"Respect to Amakusa Shiro Tokisada!"
Regardless of whether his wish is right or wrong, his persistence and dedication alone are worthy of respect.
PS: UO is the real top combat force in the solar system, the resident of the third floor of the pyramid, truly invincible. As for how strong it is, there will be a description later.
PS2: According to the current trend, the first reason why the earth dies is because of human beings.
PS3: In the world of "Magical Girl Illya", Einstein Waltz may also be a pawn of the Gem Man.