A certain crossover anime's nuclear-powered sword immortal

Even though magic can do this, it's still impossible to completely forget it; occasionally, one might suddenly remember that there seems to be someone else in the house.

"The decor is still in the style of 94, but it's not bad."

Shirou murmured to himself, then walked to the window and pulled back the curtain that was blocking out the light.

Just the right amount of soft sunlight streamed in, creating a stark contrast between the modern scene outside the window, reminiscent of 04, and the room's furnishings, belonging to the past.

"Let's go check on Irisviel first. I wonder how Sakura is doing now..."

Shirou leaves home and walks down a modern street, bidding farewell to the past.

The vehicles driving on the road are also different from those ten years ago, having become more advanced.

Human development is happening at an incredibly fast pace; in just ten years, it seems we have entered a completely new realm.

"It's starting to look a bit modern now."

Although it's still a bit behind the stage Shirou reached in his previous life, it's already quite good as it is now.

"Not only Sakura, but Ilya's physical condition also needs to be improved. What method should we use? Should we use the power of the Ten Incarnations?"

As the sixth of Vereslana's ten incarnations, the "Boy" possesses the power of words, granting protection to those who use this power. Solving Ilya's physical condition would be effortless for him, though he would do it by communicating verbally…

"Let's talk about it after we meet..."

I also need to see Rin.

"Oh right, there's also Kallen, who was adopted into Kotomine Rie's family, and I still have to fulfill my promise to Saber. Not only that, but I also have to do what I promised to do with the Jewel Mage to help protect the world... Considering the time, it really is about time..."

There were quite a few unexpected things happening, and Shirou rubbed his temples, feeling a bit of a headache.

If it weren't for the exponential growth in strength within the world of "Godslayer," dealing with these matters would be incredibly troublesome.

To face these things with the strength one possessed before going to the world of "Godkiller" would be utterly wishful thinking.

This world is not a single-threaded one. Because of Shirou's numerous reboots in the past, countless parallel worlds have merged and intertwined over the past decade, forming a vast and chaotic world.

Encountering characters like Goetia, Ort, alien evil gods, and space warriors, Shirou at the time could only type "GG" amidst laughter and cheers.

"Oh, and while you're at it, use that 'Dimensional Roulette' opportunity too."

A pale blue light screen appeared before his eyes. Shirou checked the icon in the lower right corner, which showed the remaining number of uses: ["Dimensional Roulette" activations: 1].

"let's start."

As Shirou spoke, the roulette wheel began to spin, and one after another, abilities and items that even Shirou, with his current strength, couldn't help but catch his eye flashed by.

Such as the simulated star map, the right of the divine, the two-dimensional foil...

"Huh? What's this 'Winged Rathalos egg'?"

This thing is known as the "Madoka God" of the Yu-Gi-Oh! world, and is the initial form of Winged Dragon of Ra, one of the three Egyptian God cards in Yu-Gi-Oh!.

Shirou's thoughts were quickly interrupted by the system's notification sound.

He quickly looked at the light screen, and the stopped pointer was pointing to one of the items—'Simulated Star Chart - Avesta'!

The "Simulated Star Chart" is the most powerful gift in the world of "The Little Garden," and only beings at the center of a divine group, such as Buddha or God, can possess it.

The "Simulated Star Chart Avesta" possessed by Az Dakkaha, the "Absolute Evil," is one of the most powerful and practical among all "Simulated Star Charts."

It can take the worldview of the far right, which holds the definition of good and evil, and can imitate the worldview of the object, and use it as a mirror to quickly reflect the extreme of dualism.

To put it bluntly, it possesses a power that completely transcends the realm of omnipotence: it can never win in a one-on-one situation, but in a one-on-many situation, as long as the target does not inherit human blood, it can infinitely increase its own blessings.

Chapter Two: The Demon King and the Nun

If there are any exceptions, they are only the gods who embody the blessings of Zoroastrianism.

To give another simple example, even if a weak person possesses "Avesta", as long as the enemy does not possess human factors or the blessings of "Zoroastrianism", they can add the opponent's performance to themselves without any difference, so that their win rate will never be lower than 50%.

Once activated, 'Avesta' can counteract any attack except those with restrictions.

It can be described as an extremely overpowered special ability.

The reason why 'Absolute Evil' Az Dakkaha was able to easily repel the encirclement of a million gods was largely due to the power of 'Simulated Star Chart Avesta'.

"Not bad... Having obtained this 'Simulated Star Creation Map - Avesta,' my strength has reached a new level."

A completely new field!

Shirou couldn't hide his excitement and really wanted to find a worthy opponent to test the power of the 'Simulated Star Chart Avesta'.

……

After leaving the shopping street, on his way to Einzbern Castle, Shirou passed by a church.

He looked up at the church, which had served as the overseer of this responsibility during the last Holy Grail War.

Perhaps the Holy Grail War will also be overseen by the Church, but in the original work, Kirei Kotomine, who was the overseer, was personally sent away by Shirou. It makes one wonder who it will be now.

"Another ten years have passed. Kotomine Ritsumasa must be quite old by now."

Shirou remarked with these thoughts.

Time had become increasingly meaningless to him.

But seeing people around me, whose lives are limited, cherishing their time, I can't help but feel deeply moved.

Suddenly, Shirou caught a glimpse of a slender figure out of the corner of his eye. It was a silver-haired girl dressed in a nun's habit. Judging from the trash bag she was carrying, it wasn't hard to guess that she had come outside to throw away the trash.

However, just as she threw the trash bag into the trash can, whether it was because she used too much force or for some other reason, the girl suddenly clutched her lower abdomen, her body trembled slightly, and she slowly slumped to the ground.

……

Since being taken to the church, Karen Aldesia has had many chores in her life, including cooking, cleaning, and receiving believers who come to pray. In addition, as her grandfather has grown old and frail, she has also taken on the task of caring for him. However, the young girl does not find it too tiring.

Image: "Karen", Location: "Images/1676787542-100352746-109972162.jpg"

This kind of life makes her feel fulfilled, and she doesn't have much time to worry.

Karen was not like girls from ordinary families.

It may be related to her mother Claudia Altasia's suicide. Her father, Kirei Kotomine, left her when she was very young, and she was adopted by a priest. She thought that this was how life would be, but then she suddenly ended up in Fuyuki City, where her grandfather lived.

Because of their blood relation, her grandfather had always treated her very well, teaching her about various matters within the church. The only difference was that her grandfather was unwilling to let her participate in anything related to the Holy Grail War.

This is related to her psychic aptitude, which is a constitution that manifests as spiritual barriers whenever a demon gets close, causing her to suffer. This is known as "masochistic psychic aptitude".

“Your father died in the Holy Grail War, and I don’t want you to suffer the same fate.”

That's exactly what the elderly Kotomine Ryo said to her.

It is said that this Holy Grail War will be led by someone else who is related to his grandfather, Kotomine Risei.

The Holy Grail...

Karen was actually quite interested in the Holy Grail, which was said to be able to grant any wish, after all, she also had many regrets.

Karen Aldesia arrived at the church as usual, carrying a garbage bag. Along the way, she encountered many familiar faces—the believers who regularly came to pray.

"It's so cold..."

Feeling the slightly cool air, Karen suddenly realized that she should wear more clothes.

Karen's constitution was far inferior to that of her father, Kirei Kotomine; she was a typical frail young lady.

Although she had learned basic magic, Kotomine Risei did not want her to follow the path of a magician. Instead, he hoped that Karen could go to school like a girl from an ordinary family and have a normal life.

Although martial arts have nothing to do with magic, Karen didn't think she would ever need to use them, so she didn't study them in depth.

To be honest, these are just some self-defense techniques, enough to deal with ordinary people.

However, Karen had never done any physical training, so she was somewhat weak in terms of physical strength.

"Hurry back..." Even the nun's habit she was wearing felt a bit cold because of the weather.

Even though Fuyuki City's winters aren't as cold as other places, it's still winter, and she'd easily catch a cold dressed so thinly.

Karen quickened her pace and walked briskly to the iron gate, throwing the garbage bag she was carrying into a trash can on the side of the street.

Then, they immediately planned to return to the church.

"Wha...what happened...!"

As soon as she turned around, Karen suddenly felt an unprecedented pain, as if her lungs were on fire.

"Cough...cough..."

Karen coughed violently when she felt a sudden sweet taste in her throat. Then, when she removed her hand from her mouth, her pupils constricted slightly.

"Blood……?"

Why did I suddenly cough up blood?

Karen didn't think there was anything wrong with her body before this, so why did she suddenly feel so uncomfortable?

Karen, her mind filled with confusion, raised her head somewhat absently.

Unsure where to turn their gaze, they met a pair of pale golden eyes.

'That person—!?'

Karen understood immediately upon seeing the other person for the first time.

My body is experiencing a spiritual disorder reaction!

Shirou was also puzzled by the girl's reaction. He remembered that Kallen's "masochistic medium" was effective against demons, and in the original work, she was also used as a demon's probe.

Although Shirou has changed the girl's fate, her constitution remains unchanged.

Approaching a demon will cause a spiritual barrier to manifest, and it seems that this is happening now because of Shirou's body, which is filled with immense power.

"It hurts... Waaah...!" Karen, trying her best to endure the pain, hugged her body tightly with both arms.

Amidst the overwhelming pain, Karen felt as if she were suffocating; her body gradually became lighter, and her mind became chaotic.

In her final, blurry vision, she saw the man walk up to her and pick her up.

Lying limply in the arms of a strange man, Karen, who was almost losing consciousness, felt a sense of unease about her possible situation.

'This is... terrible...'

Chapter Three: Special Treatment

With the nun who was experiencing a spiritual disorder because of him, Shirou temporarily returned home.

After placing her on his bed, Shirou attempted to use magic to heal her injured body.