In this crossover anime, Yoshikage Kira longs for a peaceful life.

Although he was secretly wary, Kiritsugu Emiya still took the initiative to speak in order to show friendliness:

"Although this isn't our first meeting, isn't this the first time we've formally introduced ourselves? I'm Kiritsugu Emiya."

"My name is Yoshikage Kira."

Kira Yoshikage gave a friendly smile. "Emiya Kiritsugu, I've heard of you."

Irisviel remained extremely wary of Kiritsugu Emiya, and her voice was somewhat cold:

"Emiya Kiritsugu, why are you here?"

Emiya Kiritsugu's expression shifted slightly, and he immediately understood the reason, explaining:

"It was by chance that the maid who guided me told me that I could freely tour the castle."

The wife frowned slightly upon hearing this, seemingly judging the truthfulness of his words. Her expression softened slightly, but her tone remained icy:

"This is the Einzbern magic workshop; outsiders are not allowed to enter!"

"Sorry, I'll leave now."

Kiritsugu Emiya took his hand out of his trench coat pocket and slightly opened his palm to indicate that he posed no threat.

Einzbern's achievements in artificial humans are indeed world-class. It's easy to mistake a notorious killer like him for someone trying to steal the Einzbern family's technology if he suddenly appears near the Magic Workshop. No wonder she is hostile towards him.

Now that the misunderstanding has been cleared up, he naturally wouldn't stay here any longer, as that would only create more misunderstandings.

Irisviel gently stroked Yoshikage Kira's cheek, softly reminding him:

"Kira-kun, go through this corridor, and you'll find the Einzbern Chapel ahead."

Kiritsugu Emiya, who had already passed by Yoshikage Kira and the others, also heard the girl's voice, and his expression became somewhat subtle.

What happened to the rule that outsiders were not allowed to enter?

What is this all about now? That blond youth doesn't look like a homunculus from your Einzbern family at all, does he?

Did they receive Ahadeon's approval?

But it doesn't matter.

Anyway, he wasn't from Einzbern and had no interest in android technology. Even if these androids were beautiful, they were just a group of exquisite dolls, not real people.

There may be people who are attracted to androids, but he is definitely not among them.

The only person he ever loved in his life had already died in his father's research...

From that moment on, he understood one thing:

Justice comes at a price.

If you go against his sense of justice, even his own father must die!

-----------------

chapel.

In the eyes of a magician, a chapel is not a place to praise God's grace and find peace of mind, but a sacrificial room for performing magical rituals.

In the Einzbern family chapel.

There's an additional layer of meaning here.

Deep beneath the chapel lies the magic workshop that forms the foundation of the Einzbern family.

The magic workshop is surrounded by at least 20 layers of barriers, making it virtually indistinguishable from a fortress in a magical sense. Even the most powerful magicians cannot step inside these barriers without the master's permission.

however--

"This is it."

Irisviel pointed to a corner of the magic workshop, "That's Ahadeon."

As the Holy Grail and the pinnacle of the Einzbern family's artificial human technology, Irisviel possesses the highest authority second only to Ahadeon. Even in this magical workshop protected by multiple barriers, she can enter and exit as if it were her own territory.

In the direction the girl was pointing, there was an artificial human body being manufactured.

However, Yoshikage Kira's gaze fell on the creation in the center of the Magic Workshop, a magnificent instrument that science could not comprehend at all, but which was a technological marvel in the magic world!

This instrument reveals the true identity of the so-called patriarch of the Einzbern family:

Puppet Yubustakuhaid.

This is an artificial intelligence created by the disciples of the Third Mage to control the central hub of the castle, and is also the father of all Einzbern homunculi. Ahad is just the eighth-generation humanoid terminal created by Yubustakuhaid.

Just like Asimov's three laws of robotics, Yubustakuhaid was also responsible for implanting Einzbern's three laws into the android:

1. To maintain and operate the facilities of Einzbern and the castle.

2. Reproduce the third method.

3. Implant necessary humanity and imitate human speech and behavior.

It's no exaggeration to say that...

For Einzbern, who was obsessed with reproducing the Third Law, the existence of Yubustakuhaid was of paramount importance.

Unfortunately.

Not all androids know the truth.

At least in Irisviel's eyes, Ahad was just one of many android models.

Whether it's Ahad or any other artificial being, or even herself, they are all just useful tools, nothing more.

Therefore, Irisviel simply believed that destroying Ahad would only reduce the production of one type of android, and that the position of chieftain could be replaced by other types of androids, or by creating new androids to replace him.

If the complete destruction of 'Ahad' could be exchanged for the continuation of Einzbern, it would be a very worthwhile deal.

But actually.

Kira Yoshikage's goal was never to eliminate Ahadeon, but to destroy Yubustakuhaid itself.

The consequences of doing so would undoubtedly be disastrous!

While it won't directly lead to the destruction of the Magic Workshop, the lack of artificial intelligence coordination will inevitably affect the production of androids. Not only will production efficiency be greatly reduced, incomparable to before, but newly produced androids will also not be implanted with the 'Three Laws of Einzbern'.

and so.

"Yukino."

Yoshikage Kira called out the girl's name.

"Huh?"

Irisviel paused, looking in surprise at the suddenly appearing figure. A girl with long, straight black hair named Yukino Yukinoshita had appeared beside them, in this heavily guarded magic workshop, without them even noticing.

"Domain Expansion - Void Engine!"

A slightly cool voice came from the girl's mouth, and Irisviel hadn't even had a chance to figure out how she got in.

next moment.

The world before their eyes suddenly changed!

Green threads emerged from all directions, forming tightly woven networks. These threads were not static, lifeless objects, but rather constantly changing like living things. These countless threads extended, connected, twisted, and swirled, causing the networks to become exceptionally active, rising and falling like waves on the sea.

Such networks are scattered throughout the world, densely packed in some places and extremely sparse in others, consisting of only a thin layer.

But without exception.

In this world, there is nothing that is not wrapped in silk threads!

Even Irisviel herself, as well as Kira Yoshikage and Yukino Yukinoshita in front of her, were also surrounded by a large number of threads!

"A Reality Marble?"

Irisviel gasped inwardly, despite the fact that the newborn girl was extremely lacking in common sense.

As an artificial human, some knowledge about magic is quietly engraved in her mind like a memory passed down from her bloodline.

One such example is the magical enchantment that rewrites reality using the practitioner's 'mental landscape'!

That is the closest thing to 'magic' in 'magic', and once activated, it will transform the surrounding space into a completely different landscape.

Although she didn't know exactly what these threads were, they were undoubtedly part of the inherent barrier she was familiar with, or at least something similar!

Is this girl who fought alongside me not long ago really such a powerful magician?

The girl looked up at Yukino Yukinoshita, only to find that Yukino had closed her eyes and was not moving at all.

"Kira-kun, what exactly is going on..."

Irisviel instinctively wanted to ask what was going on, but Yoshikage Kira simply made a shushing gesture, indicating that she should not disturb Yukino.

Umm~!

Irisviel obediently covered her mouth, trying not to make a sound.

Yoshikage Kira glanced at the girl to one side; she kept her eyes closed, still adjusting to the changes in the field.

Yukino Yukinoshita possesses exceptional psychic abilities, including the extraordinary power to transform real objects into fake ones and fake ones into real ones.

She can create objects out of thin air, even materialize fictional weapons from novels, and even completely inherit the 'settings' of the weapon itself. She can also turn real objects into nothingness.

When this ability is applied to a specific field, it will truly demonstrate its power.

The so-called transformation between the virtual and the real is essentially nothing more than 0 and 1.

If you look closely, you'll find that those green threads are made up of active, changing 0s and 1s.

The entire world that is now presented to them is all 0s and 1s!

By manipulating the 0s and 1s in this world, even counterfeits can be transformed into genuine objects, and genuine objects can be turned into counterfeits. However, this requires the user to possess an immense amount of psionic energy and terrifying computational power capable of simultaneously recognizing and editing countless 0s and 1s!

When an ordinary person sees a stone, the only information they receive in their mind is its shape and size. But in Yukino's realm, this stone is no longer just a stone; it's as if every single molecule that makes up the stone has been broken down into 0s and 1s and then crammed into her brain!

no doubt.

While such an ability is very powerful, it would undoubtedly be an extremely terrifying burden for Yukino Yukinoshita.

Therefore, she almost never uses her domain. Even when she needs to construct a 'fake' into a 'real' object, it takes a lot of time to complete. Most of the time, she simply fights using pure psionic energy.

but.

As long as she doesn't try to access or modify the 0s and 1s in this area, all she sees are green threads.

That's how Irisviel was.