Back to Ten Years Ago

Shirou's Thirty Million Avatars

Introduction:

I actually rebirthed back to ten years ago, the period of the Fourth Holy Grail War.

Realizing this, countless thoughts immediately surged into Shirou's mind.

Just as he was about to implement them, Shirou suddenly arrived in a white mist space and saw two other versions of himself.

Turns out I didn't just rebirth in one world... Since I've already become this strong, then... it's probably fine to be a little reckless, right?

Chapter 1: Returning to Ten Years Ago

Section 1: Chapter 1 Returning to Ten Years Ago

The moment he opened his eyes, a pair of large hands came toward his face from above, and the owner was even saying strange things.

"Let's go, don't just stand there dazed." (1)

Did I transmigrate to the realm of giants? Or am I dreaming?

At this moment, Shirou could not care about anything else, flung away the large hands, and turned around to run without the slightest hesitation.

That "giant woman" froze for a moment, then hurriedly gave chase.

Feeling the presence pursuing him from behind, Shirou clenched his teeth and used all his strength to run desperately.

Mana Reinforcement!

The next moment, Shirou added a bit more force to his feet, and his speed greatly increased.

In the blink of an eye, he shook off the pursuit of the "giant woman".

Passing through a side alley and running continuously down two streets, he finally slowed his pace.

Phew... running all the way here, she probably won't be able to catch up anymore, right?

Actually, ever since that moment just now, Shirou had a guess in his mind.

Only, he really was unwilling to admit it.

Having transmigrated for ten years, the Fifth Holy Grail War was reaching its critical moment, and there were still quite a few people in the world whom he constantly cared about and could not let go of.

If he transmigrated again, what would happen to them?

Walking down the street, Shirou stopped in front of a cake shop, hesitated for a long time, and only then overcame the resistance in his heart, painfully turning his head.

The glass of the cake shop's display window reflected a small figure.

Short red hair, height of about a meter or so, wearing an elementary school uniform.

Without a doubt, this was himself from ten years ago, as an elementary schooler.

Turns out it wasn't a transmigration, but a rebirth?

Shirou inexplicably let out a sigh of relief.

It wasn't transmigration, which meant he could meet them again.

Looking himself up and down in the glass, Shirou could not help but fall into deep thought.

Ten years ago, he inexplicably transmigrated to this world, didn't meet Kiritsugu Emiya, but was instead adopted by Kirei Kotomine, becoming Shirou Kotomine.

His last memory was turning off the lights and going to sleep in his bedroom.

Opening his eyes once more, he had rebirthed back to the present.

Suddenly rebirthing only had one possibility—he had already died in his sleep.

There were a total of three Servants in the church, plus Kirei's own combat strength, so it was fundamentally impossible for an outsider to break in and kill him without a sound.

In other words, there was only one killer: Kirei Kotomine.

Shirou clenched his fists, took a deep breath, and quickly calmed down.

Though I really don't want to believe it, analyzing by the current situation, the only person who could eliminate me silently inside the church is Kirei.

Only he could make him drop his guard completely.

Only he could bypass the Servants and cause him to die in his sleep.

Only he possessed the motive to kill him.

I really am stupid enough; Sakura and Rin have a great relationship with me and can be counted as allies.

With three Servants joining forces, even if Kirei has Gilgamesh and Cú Chulainn, it would still be very hard to handle. After all, we can do a two-on-two, and the remaining one can launch a direct assault on the Master.

Moreover, Kirei was fundamentally a pervert who single-mindedly pursued pleasure.

Being able to see the expression on his adopted son's face after betrayal would definitely bring him immense satisfaction.

Actually, these things had been anticipated long ago, but he just hadn't expected this day to come so soon.

Kirei Kotomine was naturally the kind of cold-tempered person; between himself and him, rather than calling it father and son, it was more like roommates living under the same roof.

Usually, if no one took the initiative to speak, both sides would maintain zero communication, with the longest record being two months.

"Kirei!"

Shirou muttered his adoptive father's name, his mood gradually cooling down.

You are unrighteous, but I cannot be ungrateful; the grace of upbringing and the enmity of murder cancel each other out.

From now on, we have nothing to do with each other.

The Kotomine surname—I'm giving it back to you, I don't want it anymore.

That "female giant" from just now should be young Shirou's mother, who died caught in the aftermath of the Fourth Holy Grail War.

However, he was not the original Shirou; to him, she was no different from a stranger.

Accustomed to the detached father-son dynamic he shared with Kirei Kotomine, normal familial affection felt practically the same as boiling lava to him, making him only want to stay far away.

Besides, things like looks and emotions could not be concealed.

If he really went back with her, as long as they exchanged a few simple words, she would likely realize soon enough that her son had been possessed by some sort of fake.

Afterward, she might even invite someone to perform an exorcism or ritual.

Rather than being like that, it was better to just leave.

Shirou turned his head again, glancing at himself reflected in the street shop's glass.

His height was a little over a meter, several centimeters shorter compared to when he was seven years old, ten years ago.

Judging by this, the present should be during the Fourth Holy Grail War, or right before it began.

This is an opportunity! Although I'm just a kid, if I can summon a Servant, maybe I can break into the Matou residence and rescue Sakura.

Having transmigrated for ten years, Shirou's only friends were the sisters Rin and Sakura.

Let's figure out a way to determine the exact time first; I wonder if the Holy Grail War has actually started or not?

If the Holy Grail War hadn't started yet, as a transmigrator plus a person who had rebirthed, Shirou was confident he could snatch the last slot right out of Ryunosuke Uryu's hands.

If it had already begun, then he would definitely have to think of another way.

"Hello, I'd like to ask, what is the year, month, and day today?"

"Scram, scram... little brat go play somewhere else, don't disturb my business."

"Big sister here, do you know what year, month, and day it is right now?"

"Little kid, right now it's year 2038, month 18, day 38 oh."

Shirou was left speechless; where does a year get 18 months? And 38 days, this joke is not funny at all, ah.

Change person!

Shirou looked left and right, intercepted a young woman who looked relatively easy to talk to, and asked:

"Big sister, I'm doing some research, may I ask what year, month, and day it is right now?"

"Elementary schoolers have to do research too? How hard, right now it's year 3000 of the Common Era, January 1st oh, remember it well, don't forget."

At this moment, Shirou inexplicably didn't want to say a single word.

Do people nowadays all like joking around this much? Is it fun? I'm just asking for the time, hey!

Forget it, I won't ask.

Shirou looked all around, his gaze locking onto a pedestrian bridge in the distance.

This place... looks a little familiar.

Although because a child's perspective was different from an adult's, coupled with the changes over ten years, Shirou still retained some impression of this place.

Let's go take a look at the Tohsaka family first; if Rin and her mom are still there, that means the Holy Grail War hasn't started yet.

Following the familiar street, he ran all the way and quickly arrived outside the Tohsaka estate.

After ringing the doorbell, a maid soon came to open the door.

Looking up at the "giant"-like maid, Shirou decided to use Rin Tohsaka as his breakthrough point:

"Big sister, hello, I'm Rin Tohsaka's classmate, I wonder if she's at home?"

"Miss Rin accompanied Madam to the Zenchou family, she won't be back for the time being."

"Then what about Sakura Tohsaka? Is she at home?"

"Miss Sakura is no longer a child of this family."

"What does that mean?"

"Please go back; next, I still have a lot of work to do."

Shirou glanced at the Tohsaka estate and turned away.

Judging from the current situation, Sakura had already been adopted into the Matou family, and the Tohsaka family might have already summoned Gilgamesh. The Holy Grail War was about to start, or perhaps it had already begun for all he knew.

To participate, he had to summon a Servant.

Shirou lowered his head to look at the back of his clean hand and muttered:

"Is the problem qualification?"

Without a Command Seal, even if he remembered the summoning magic circle, it would be impossible to succeed.

"Sure enough, I still have to go forcefully snatch one."

Without qualifications, then he would just go snatch a qualification.

This session of the Holy Grail War had two very obvious soft persimmons.

Ryunosuke Uryu and Kariya Matou.

The former possessed superb concealment and anti-reconnaissance abilities; he might not necessarily be able to find him.

On the contrary, Kariya Matou—if he went and staked out the Matou residence, he might just be able to wait for him.

Then, the only remaining problem was how to snatch his Command Seal, or persuade him to cooperate with himself.

After all, he was not seventeen-year-old Shirou Kotomine right now, but merely seven-year-old tiny Shirou.

"Sigh..."

With a seven-year-old body, doing anything is inconvenient, ah.

Chapter 2: Avatars Plus Two

Section 2: Chapter 2 Avatars Plus Two

Outside the Matou residence, Shirou stood behind a utility pole, looking far off toward the gates.

Before he knew it, the sky was gradually darkening.

Looks like I won't be able to wait for him today.

Shirou let out a dark sigh and turned to leave.

He didn't know which stage the Holy Grail War had progressed to.