My Cute Berserker is an Artificial Intelligence from Japan? (Fate/stay night/Sword Art Online)

[___]

Basement, Einzbern Castle

Rhenish Massif

Rhineland-Palatinate

The Federal Republic of Germany de jure

Europe

The First of December, the Two Thousandth and Third Year of the Common Era

Illyasviel von Einzbern

Spoiler: Illya angry. You wouldn't like Illya when she's mad.

The Einzbern Castle towers over the surrounding flatland plains, its expanse covering over several towns worth of land. For all it looks like a frozen wonderland of every child's dreams, it is as cold and empty as it looked. Trapped with ancient Magecraft in eternal, enduring winter, bereft of human kindness.

It was here that I was born, my parents lived and where I was betrayed. My Father, Kiritsugu who betrayed the Einzbern a decade ago, and forgot me for some savage orphan from the Eastern Isles.

At long last, my revenge is coming to fruition, since Kiritsugu is gone, I guess I will just have to take care of his brat.

I refuse to acknowledge that boy as my brother.

By drawing the strongest card with my limitless mana in Fuyuki. The victory the Einzberns have been seeking for over three centuries is within my grasp.

Even though, I may not live to see it...

"Commence the Servant Summoning Ritual." A cold voice devoid of any intonation echoed into the basement."

"Yes, Grandfather" I replied automatically.

I began the incantation, I noted from the corner of my eye, the faint smell of roses and the sight of a petal fluttering onto the circle.

Grandfather ignored it, so I followed suit.

I am being dipped in flaming hot tar. Regardless, I continue to channel my Od into the specially prepared ritual circle inlaid with alchemically perfected elemental mercury as I was trained to do.

Let silver and steel be the essence.
Let stone and the archduke of contracts be the foundation.
Let my model Justeaze be the Ancestor
Let rise a wall against the wind that shall fall.
Let the four cardinal gates close.
Let the three-forked road from the crown reaching unto the Kingdom rotate.


Let it be declared now; your flesh shall serve under me, and my fate shall be with your sword.
Submit to the beckoning of the Holy Grail.
Answer, if you would submit to this will and this truth.

An oath shall be sworn here.
I shall attain all virtues of all of Heaven; I shall have dominion over all evils of all of Hell.

Yet you shall serve with your eyes clouded by chaos. For you would be one caged in madness. I shall wield your chains.

From the Seventh Heaven, attended to by three great words of power, come forth from the ring of restraint, protector of the holy balance!​

A freezing gust spread to all four corners of the room, as the room began to fill with the scent of roses and frost.

The Fifth Fuyuki Holy Grail War would never be the same again.

---

Throne of Heroes, Outside of The World

Outside of Time

NND7-6361(Eugeo)

Spoiler: Your favourite Golden Retriever

I saw a light.

It was calling to me.

"...my fate with your sword." A dull whisper from far far away called to me.

My sword?

Where is my sword?

"...caged in madness"

Madness, huh?

I turned my blade on the two I held dear to my heart.

If not madness, then what else could it be?

"...Protector of the Holy Balance!"

Someone who needs protection, huh?

I can't even protect myself.

I felt someone reaching for me. They were so very young.

Only nineteen, that's how young I was when I died...

...and lonely.

Someone who gave love and was betrayed.

Above it all was the scent of a rose desperately trying to grow, even when frozen by the harshest chill of Winter.

Ah, now I remember, my name is Eugeo, the youngest third son of Orick, a barley farmer from Rulid Village.

Alice!

"Where are you?" I asked the void, blacker than night.

I felt a warmth in my heart and my hand, I looked down.

"You were with me all this time" I whispered to her.

Very well, my mission is accomplished, I have a feeling he completed his mission as well.

---

Illya

"Servant Berserker has answered your summons." A boyish voice echoed throughout the room.

"But, you my master", he inclined his head towards me.

"...can call me Eugeo", he beamed, the warmth in his voice made me think that perhaps the chill of this cold, empty castle hadn't quite sunk into my bones yet.

"You are not Heracles." My Grandfather said shocked.

But we had used a catalyst!

Why had our efforts over this painfully cold decade resulted in this failure?

"Ah, I believe it was this." He replied nonchalantly as he turned the catalyst we used, a pillar from one of Heracles' most ancient temples. To reveal a surprisingly intact rose caked in frost.

"It resonated with my sword you see." He drew his sword from a white leather scabbard on his back.

The Blue Rose Sword(WLSS703). The name resonated throughout my mind along with an odd series of letters and numbers. Was that his Noble Phantasm?

It looked rather plain with two edges in a standard European-style sword. The only thing that stood out was the incredibly detailed motif of a rose upon the crossguard, it looked like petals could fall at any moment.

But there was something telling me that this was something more.

"Very well, Illyasviel, proceed to the Courtyard for a demonstration of your Berserker Servant" Grandfather ordered in a tone that brooked no dissent.
"Yes, Grandfather" I replied, keeping my frown off my face.

My Berserker, Eugeo, followed suit interposing himself between us as if trying to protect me from his words.

---

My first full-length work!

Constructive criticism is appreciated. Discussion is also good.

The lack of Eugeo fics anywhere despite being Kirito's Best Friend and a total bro was very disappointing. Given that Alicisation is basically their bromance, I felt like making something after my annual rewatch.

My own sign of appreciation for SAO and FSN is one of the first anime that I actually watched. The same goes for the VN and LN respectively.

Kudos to YuutsuRingoBeta and Moczo, the authors of SaberFes and Chaos Theory respectively for the initial inspiration and Illya characterisation.

---

Changelog:

2023-11-05: The first version is posted simultaneously to SB, SV, QQ, AO3 and FFN.

2023-11-11: The first section is modified to be consistent with other versions.

 

[___]

"Training Room", Matou Magical Workshop, Matou Residence,
Miyama Town, Fuyuki City
Ōita Prefecture
Japan

The Twenty-fourth of January, the Two Thousandth and Fourth Year of the Common Era

Sakura Matou

The manor in which it is forbidden to enter.

The rule that even the littlest of children know.

Although none of the citizenry have realised the true nature of the master of this manor, they understand instinctively and stay away from this house. If they so would they round us all up and burn us with their torches and pitchforks like in those Westerns that my Brother always talks about?

It's hopeless in the end, no one can defy Grandfather, even Uncle Kariya…

We are to begin the summoning soon, for the War. The Fifth Fuyuki Holy Grail War, a grandiose name that masks what is hidden, a ritual of betrayal, blood, and slaughter, where no one will survive. Even my Sister and Senpai will be killed, if they defy Grandfather.

Brother stands beside me trying to conceal his full body furious shudder.

Although there is no training today, he is deeply aware of what was here, what was present only a few moments prior and what would fill the room a few moments after his departure.

"Begin the Incantation" demanded Grandfather softly, Zouken Matou, the Patriarch of the Matou Family of Mages, a failed lineage of over five hundred years from Kyiv, intones as if a machine designed solely to speak those words.

I began, behind me I heard my Brother's bag, still fresh from school plop to the ground with a dull unremarkable thud. Grandfather ignored it.

Let silver and steel be the essence.
Let stone and the archduke of contracts be the foundation.
Let my template Makiri be the Ancestor
Let rise a wall against the wind that shall fall.
Let the four cardinal gates close.
Let the three-forked road from the crown reaching unto the Kingdom rotate.


Let it be declared now; your flesh shall serve under me, and my fate shall be with your sword.
Submit to the beckoning of the Holy Grail.
Answer, if you would submit to this will and this truth.

An oath shall be sworn here.
I shall attain all virtues of all of Heaven; I shall have dominion over all evils of all of Hell.


From the Seventh Heaven, attended to by three great words of power, come forth from the ring of restraint, protector of the holy balance!​

A thick woody scent filled the room.

Where was the Servant?

Is this Cedar(Sugi)?

 

[___]

Somewhere else...

---

Osmanthus Tree, Seventy-Fifth Floor, Central Cathedral

Centoria, Human Empire, The Underworld

Main Visualiser, Ocean Turtle, Unincorporated Area of the Izu Islands

Hachijō Sub-prefecture, Tokyo Metropolis

Japan

Asia

Thirtieth of November of the Six-Hundredth and Twenty-Fourth Year of the Stellar Unification Calendar

`~`

Osmanthus Tree, Seventy-Fifth Floor, Central Cathedral

Centoria, Human Empire, The Underworld

Main Visualiser, Ocean Turtle, Unincorporated Area of the Izu Islands

Hachijō Sub-prefecture, Tokyo Metropolis

Japan

Asia

Thirtieth of November of the Six-Hundredth and Twenty-Fourth Year of the Stellar Unification Calendar

`~`

Two-Thousandth One-Hundredth and Twenty-Fourth Year of the Common Era

The silence that has permeated this space for over a century is gradually fading.

The Night-Sky Blade and the Blue Rose Sword, the personal weapons of the Star King, who reigns over the sea of stars have been separated after a partnership lasting for over two centuries under their one and only living master.

The Blue Rose Sword has vanished in an instant with nary a trail, trace or a single tear to delineate its past existence, the Divine Object that bound the loneliness of that one blue rose in eternal frost is finally in the hands of its first and destined master.

That was a day exactly fifty-four days prior, the dutiful companions of that treasured trio of heroes, rulers and protectors hum inaudibly waiting for the final reunion.

Until it happens, He is being summoned, their liege lord, the one who has watched over the underworld silently for over three centuries opens his eyes.

The Star King must return once more to the mortal realm of /ˌaɪ.ɑːrˈel/, the mythical plane of the Outside and the Real spoken of by the living avatar of the gods themselves. In order to cleanse his soul of his final regrets on that day so long ago.

The Underworld beckons its final and greatest hero in order to save the world once more, both worlds, past and present, virtual and real.

The Sky King would always answer the call.

The calling of a hero, swordsman and protector of the Underworld.

Left bereft of its comrades, the Osmanthus Blade and Radiant Light shine softly in the gloom, harbingers of the return of their wielders.

Soon they shall fulfil that promise under that tree and the bond between those three children will never be sundered again.

No matter what.