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

She could only see individual threads, but not the countless 0s and 1s that made up those threads, or the even more 0s and 1s that made up those threads. So she could only feel confused and unable to understand the true meaning of this realm.

If Yukino Yukinoshita were to fully unleash her domain, her brain would instantly shut down.

Thanks to the human brain's self-protection mechanism, when exposed to excessive information, the brain stops functioning and thinking stagnates.

Commonly known as pig brain overload.

This mechanism can protect the brain from being burned out, but it can also leave the body frozen in place due to the brain shutting down.

Because that massive amount of data is beyond human processing!

So she chose to take a shortcut.

It has unfolded, but not fully unfolded.

Just like when she disguised Kira Yoshikage as Emiya Kiritsugu and Ahad—

Modifying data is difficult, but isn't copying and pasting easy?

The same is true now.

She doesn't need to understand all the 0s and 1s; the parts that involve the underlying logic of the world are the most complex, so she will never touch them.

She only needs to find the part she needs to modify, then expand the data in that part and modify it accordingly.

This will greatly reduce the required computing power, although it is still a huge burden, but not enough to make it unmanageable for her.

Even so, Yukino must access and understand the meaning of this data in order to make precise modifications to the parts that need to be changed.

Generally speaking.

Destruction is simpler than creation, creation is simpler than extensive modification, and inanimate objects are easier to modify than living ones.

What she now needs to modify is the operating code of a massive machine called 'Yubustakuhaid'.

No major modifications are needed; only the second of the three laws needs to be changed!

Chapter 212 My Lovely Moment

"They really are just like little kids~"

Irisviel, who woke up first, gently stroked the boy's cheek and whispered softly.

Although when I first met him, I mistakenly thought he was a very cold person.

After all, he killed his great-grandfather without even blinking, then threatened her with the Einzbern family, and even transformed into his great-grandfather to deceive Kiritsugu Emiya. He was completely ruthless in achieving his goals.

But after hundreds of in-depth conversations between them, Irisviel realized that Yoshikage Kira was actually a very gentle person.

Although this gentleness is deeply hidden, and although it is often different from that of ordinary people, it is indeed genuine gentleness.

As she clearly stated, as an artificial human, she has many spare parts, and any damage to her body is insignificant.

As long as she can retain a certain degree of self-awareness and hold on until the day of the Greater Grail Ritual, it doesn't matter how roughly Kira Yoshikage uses her, or even if he breaks her.

But Yoshikage Kira remains very gentle.

Even when facing a doll that merely has the form of a human, he treats her with the same gentleness he shows to the Yukinoshita sisters.

But this gentle person would sometimes show the same expression as a child when asleep, holding their hands affectionately and refusing to let go.

If she hadn't shut down her computer early last night because she was too tired, and if Kira Yoshikage hadn't been playing games with the Yukinoshita sisters at the time, causing her to wake up earlier than Kira Yoshikage this morning, she probably would never have known that he, who was so powerful, had such a childlike side.

Compared to him, I'm the real child!

When he was awake, it was indeed like that. He would teach her many things with the same care and dedication as a father, telling her what the world was like. She trusted him completely, clung to him, and believed every word he said without question.

But when they are asleep, this relationship seems to completely reverse.

Now he is clinging to her, holding her hand and refusing to let go, not wanting her to leave.

Irisviel even had the illusion that 'if he woke up and couldn't see her, he would definitely cry loudly in a panic.'

but.

"Isn't this fine too?"

A faint smile appeared on Irisviel's face. Although, by human standards, the time they had spent together was not long, if calculated in terms of her lifespan, this man had already occupied 90% of her life.

From the time she was born until now, the person who has spent the most time with her is the boy in front of her.

Whether it's day or night, no matter what she's doing, whether she's eating or taking a bath, he will always be by her side.

Such gentleness and thoughtfulness may seem commonplace to humans.

But for Irisviel, who was born with a mission and understood from the beginning that she was just an artificial being, just a tool, this was absolutely the greatest happiness in her life.

"It's so good to have met you..."

"what?"

As she murmured softly, the boy, who had woken up at some point, was looking at her with a puzzled expression.

Irisviel gently took their intertwined hands, a radiant smile spreading across her face:

"I have to say, it's so great to have met Kira-kun!"

"Really? I think so too."

Upon hearing this, Yoshikage Kira nodded in complete agreement.

Irisviel gave him a reproachful look. She praised you like that because she likes you. But if you said that to yourself, wouldn't that be narcissism?

Yoshikage Kira proposed:

"Let's go have breakfast."

"Um~ But I want to take a shower first~"

Irisviel squirmed and protested in a low voice.

Although she knew that even if she was unable to move due to being powered off, Yoshikage Kira would definitely have cleaned her up properly, she still felt sticky all over.

It's probably because of the sweat?

It's not a good thing for androids to be too human-like; for example, she hates sweating.

"Then go take a shower first."

Kira Yoshikage smiled and agreed. Compared to Irisviel, who initially only catered to him like a doll, he preferred Irisviel, who gradually began to show her 'self' under his tutelage.

Irisviel's room was very empty.

But precisely because it is spacious enough, there is ample room for renovation.

At least according to Yoshikage Kira's plan, this place has been divided into three different areas: bedroom, bathroom, and washroom.

Irisviel loved taking baths in the bathroom tub; it seemed to be a rare treat for her.

If she could, she would even like to experience the hot springs mentioned in the book.

Unfortunately, although Einzbern has a never-ending harsh winter, it does not have the luxury of hot springs.

Yoshikage Kira also enjoys taking baths.

But he didn't like simply taking a bath; it was too monotonous.

He also doesn't like being in a room with other people; he prefers to be alone.

However, if the person sharing the room is a beautiful girl with skillful hands, then that's a different story.

Just like it is now.

Kira Yoshikage could take a bath while holding the girl's soft little hand like a precious jewel, and suck on the girl's delicate and smooth fingers.

For him.

This double enjoyment is simply like heaven!

"Just like a little kid!"

Irisviel looked at the boy with doting eyes. Only children like to suck their fingers. Adults know that it is childish, but Kira Yoshikage sometimes shows such an almost obsessive childish side.

"Huh? Why didn't you wake me up?"

The short-haired girl strode into the bathroom with her long, slender legs, rubbing her sleepy eyes as she naturally stepped into the bathtub.

Irisviel explained in a low voice:

"Because you all look so sound asleep..."

"Huh?"

Yukinoshita looked at her with a surprised expression.

"Huh?"

Irisviel was a little confused. Had she said something wrong?

"I thought you would apologize."

Yukino's tone was somewhat wistful.

If it were the old Irisviel, she would definitely apologize first.

Despite having a sense of self, she never thinks things through and instead assumes that everything is her fault.

Because she is just an artificial human, merely a tool.

The problem isn't with people, but with the tools.

Even Yukino Yukinoshita found this view distorted, but Irisviel seemed to take it for granted.

Yukinoshita Haruno doesn't like this.

She has always considered Irisviel a friend, whether she is Irisviel now or Irisviel in the future.

But if she had to compare, she did indeed prefer the future Irisviel.

And now, she can see glimpses of the future in Irisviel.

At least she didn't apologize directly just now; instead, she tried to explain.

Although it's still presented in a tone of someone who has done something wrong, it's still a step forward.

"Perhaps it's because..."