Shirou, who returned from the Fairy Kingdom

Shirou asked unhappily, "So, Sister, have you found the location of the Holy Grail?"

"Although it has been confirmed that it has a function similar to the Holy Grail, it is impossible to control it."

Because my assigned task was to investigate—any further action would be beyond my authority.

Hearing her say that, Shirou smirked smugly.

"Hmm~ So, you haven't found anything about the so-called Holy Grail."

Karen said, "The mission I was assigned to has been accomplished."

Formally, I was entrusted with continuing to represent this church and to intervene should anything unusual happen in Fuyuki.

Although she herself may not have meant it that way, her statement was practically a warning to Shirou not to do anything underhanded.

The red-haired boy gazed intently at her, and the two remained silent for a moment.

"Is that so? Then please take care of me from now on, Miss Karen."

Shirou got up from the bench.

"I will definitely prove to you that the Greater Grail does not exist."

He left the chapel after saying those words.

Karen, the newly appointed acting nun of the Fuyuki Church, watched the boy's figure disappear completely through the crack in the door, then leaned weakly against the lectern.

"…………call."

She almost thought she was going to be killed.

When I came to my senses, I realized that my underwear under my black nun's habit was completely soaked.

Looking at her legs that were trembling uncontrollably, the girl bit her lip.

"Am I... feeling excited... while being bullied...?"

Karen seems to have awakened a new sexual fetish.

……

……

"excuse me."

Rin Tohsaka and Sakura Matou entered the Amamiya family's living room.

Waiting for them there were Irisviel and Ilya, a mother and daughter, with serious expressions.

"So what's going on?"

Irisviel frowned slightly and said with some dissatisfaction, "Didn't I say last time that we should try to reduce private meetings like this in the future?"

After a brief silence, Matou Sakura said, "Senpai seems to have already noticed something..."

He asked me yesterday if we were doing something behind his back.

"Hey~~~"

"how come!"

"So that's how it was. I knew it couldn't be hidden..."

"So what do we do next? Should we tell our senior everything?" Matou Sakura asked.

"Oh! That won't do! If that child finds out, we'll..."

Irisviel looked melancholy: "We must continue the ritual before Shirou fully realizes it."

"At this point, this is the only way to proceed."

Rin Tohsaka was shocked to hear this: "How is this possible! You mean you're going to hold another Holy Grail War behind Amamiya's back? There's no way he won't find out about this!"

"But...do I have to confess to that child?"

Irisviel pursed her lips: "While you were away, we secretly created a new Greater Grail."

To bring you back after your abrupt departure, Ilya and I risked our lives—

Do you think I could say such things to that child?!

"........."

The Tohsaka sisters remained silent.

Based on their understanding of Shirou, if he knew about this, he would be filled with unbearable self-reproach.

"We absolutely cannot let that child know that we secretly created the Holy Grail without his knowledge."

As Irisviel spoke, she squeezed her daughter's hand.

Ilya looked at her and nodded firmly: "Yes, Mother."

That's what they said, but how exactly could they keep it from him? No one had a good solution.

"By the way, how is the 'Greater Grail' in condition?" Rin Tohsaka asked curiously.

"The Greater Grail..."

Irisviel hesitated, unsure of what to say, after all—

Just then, footsteps were heard.

A silver-haired woman walked into the living room.

Neither Sera nor Lisserite, this woman from Einzbern possessed a noble beauty and long, silky hair similar to that of the ninth head of the family, Irisviel.

Irisviel turned pale upon seeing her: "Lady Justeza! Why did you leave the room!?"

During Shirou's absence, the "Great Grail" created by the new founding fathers of the three families was none other than the head of the Einzbern family, who had orchestrated the first Holy Grail War two hundred years ago.

"The Winter Saintess" Justessa Rislesi von Einzbern.

……

……

It all goes back to the early days of the Fourth Holy Grail War.

Shirou's greatest prize from that ceremony—

Irisviel would claim that she is Shirou's spoils of war, but let's put that controversy aside for now... There is no doubt that it is the magical core passed down through generations of the El-Melloi family.

It is a miracle that existed since ancient times, perhaps even before the birth of humankind.

The magical mass of life, Shizuku the Star.

Over the long years, "it" was embroiled in countless battles and perished, each time transforming back into a magical mass, only to be reborn, melted, reborn, shattered, reborn, flattened, and reborn again—

It was not until it was discovered by the ancestors of the El-Melloi family that it was able to see the light of day again.

The magicians of El-Melloi believed "it" to be a figment of imagination with human form. Later, after further research, the then-ruler of the Minerals Department divided it into three parts, each modified to produce magic most effectively.

A magical furnace core shaped like a heart, body, and wings.

The monarch at that time gained a deeper understanding of "it".

If we merge "it" into one and revive "it", we might be able to obtain even more powerful magic.

However, he believed that would not be the perfect ceremonial attire (tool), so he regarded the state of being divided into three as the ultimate state and passed it down from generation to generation.

Later, Kenneth El-Melloi Archibald took it to the Far East as a formal suit, where it was stolen by Shirou and Assassin and taken directly back to their home.

After that, no one inquired about "its" condition again, and it was assumed that this state would continue for thousands of years—

As a result, the young man who owned the mansion and was also the owner of the formal attire disappeared.

The women in the mansion searched frantically, but found nothing.

Shirou Amamiya seemed to have been taken from this world—

They immediately thought: if there were a Holy Grail, if there were an all-powerful wish-granting machine... they could wish for him to come back to them.

Irisviel, Sakura Matou, and Rin Tohsaka, who couldn't resist her sister's pleas, the three members of the new founding family participated in the creation of the new Holy Grail.

They noticed "it" displayed in the warehouse, gathering dust.

I once heard Shirou mention the origin of "it"—the El-Melloi family's most prestigious formal attire.

Rin Tohsaka had heard of this thing before, and after studying it in depth, she discovered its amazing features.

Even if it's not as powerful as the Fuyuki Grail, the energy it provides is enough to perform grand magic that's almost like magic, making it equivalent to a small, reusable wish-granting machine for magicians.

If we could incorporate Einzbern's techniques into it, it might even improve efficiency...

Blinded by the loss of her beloved son, Irisviel immediately decided to fuse the three cores together.

She even returned to the Great Hollow—where the remains of the Holy Grail, which had been dismantled and abandoned years earlier, lay.

The core of the magic furnace was originally in the form of a stone statue, so adding new "stones" during the fusion process was not difficult.

That's right, the item to be added is the fragment of the altar where "Winter Saintess" Justestra sacrificed herself.

And so, "it"—

No, it should be said that "she" was reborn.

She can sense human desires and wants.

I want the Greater Grail, I want the wish machine...

The woman's obsession in this mansion was so intense that it entered "her" body.

The "wish" was perfectly fulfilled.

She decided to be born into the world in human form.

Originally, she was almost a fairy or elf-like being. Later, she was further mixed with the circuits of an artificial human (a natural infant) and the remnant consciousness of the Winter Saintess in the altar fragments.

As a result, the original and ideal Greater Grail – "Eustiza" – was born perfectly.

Her appearance, thoughts, and personality are completely identical to that of the Winter Saintess; she can even wield an incomplete third magic.

The women of Eindzbern were stunned, only now realizing that they had committed an irreparable crime.

"Irisviel."

The silver-haired woman slowly walked into the living room.

Although they resembled Irisviel in appearance, their temperaments were completely different, even opposite; one was passionate and fiery, while the other was cold and aloof.

Because she was born without clothes, she is now wearing Irisviel's clothes.

"Lord Justice Justeza...!"

Irisviel quickly went over to help the Winter Saintess.

It is said that Justeza was so fragile in life that she could barely walk. The fact that she can walk like this now is thanks to the magic cube.

"I think I've caused everyone trouble," Yustisa said.

“No, that’s not true at all…” Irisviel looked embarrassed.

Originally intended to create a new Holy Grail, it inadvertently resurrected the great ancestor.

If that were all, it wouldn't be so bad... But now that Shirou has returned, Justeza's situation has suddenly become incredibly awkward.

These past few days, Irisviel has been telling Justeza not to leave the room, lest Shirou notice her presence.

But how long can this lie? Although Shirou appears honest, he is actually quite perceptive and perceptive.

He had already realized the strange changes in his home, and it was only a matter of time before the existence of the "Great Grail"—Yestesa—was discovered.

"Let me meet that boy named Shirou."

Yustisa suddenly said.

Irisviel's eyes widened: How could this be...!

She instinctively wanted to refuse, but then she noticed that the Winter Saintess's expression was incredibly resolute—she was serious.

Yustissa had already heard from Irisviel about the tremendous changes that had taken place in the Einzbern family in recent years.

The artificial human race, whose way of existence has remained unchanged for thousands of years, has now abandoned its long-cherished wish, stepped out of the snow mountain barrier, and achieved great success in the human world of magic.

All of this is inseparable from Shirou's help and advice.

It could even be said that the Einzbern family, which was already old and should have been on the verge of extinction, was revitalized by Shirou's appearance.