The future a little further than it is now.

In a world where computers grow and robots who can think like people travel a lot...

An unnamed Mad Scientist created 12 battle machines called "Guardians" at an institute built in the back of a mountain in Japan.

The Guardian also looks like a normal human at first glance, but the truth of the matter is, with humanoid robots that exert power beyond intelligence...

It was the so-called all-purpose robots who sometimes rushed the ground at interminable speeds, sometimes flying freely around the sky and sometimes traveling at supersonic speeds underwater.

They weren't built to fight a war like that.

Anyway, it was equipped with a deadly flaw as a weapon.

That's right.

He had a heart.

It should also be noted that even in this era, it is considered inefficient to mount an uncertain "mind" on a weapon for which certainty is required, so there is no such thing as a mind mounted on a weapon.

So what the hell were they made for?

As for that, the Mad Scientists who created them had left the world for no reason, and there was no way to know because there was no information left about it in the database that was on the Guardians.

In other words, no one knew.

Therefore, not knowing what to do, the Guardians on the way tried to create their raison d 'être in defending the land where the Institute was located, the place where they were created but also the home of the creator Mad Scientist.

And they decided to call themselves "Guardians" without a name.

For them, endowed with great power like a weapon of killing, the only way to make effective use of that power was to find a use that would allow them to exercise that power peacefully, as much as to defend something.

Though.

I wasn't specifically engaged in activities to protect something.

In the back of a mountain where no one is present, he seemed to live an almost neet- serene life, just looking around the natural environment of the woods and lakes that were around the research facility.

It should be noted that the cost of living can be capital because of the enormous wealth left behind by Mad Scientists.

Such is their energy source, not electricity.

Just like people, energy is supplied by diet.

Moreover, elaborately, if you neglect a balanced diet and repeat all the bigotry, you develop symptoms like illness......

Besides, the function of being attacked by abdominal pain when you mouth something rotten or unsuitable for food (?) were mounted to.

For this reason, they sometimes went down to the public to buy food and consumables for what they could not be self-sufficient….

The humans didn't seem to realize they were robots.

Not so long ago, they looked just like humans.

... but there was only one exceptional figure among them like that.

Zdwwwwww!!

"Uh, I did it again... your sister will piss me off... give it up..." Slow

Along with the sound of breaking something, there is one girl who is not sure if she is reflecting or not reflecting on the front door of the research facility.

Her name is Waltz.

It is the protagonist of this story.

Can you imagine what she looks like when it comes to blonde short blue eyes, 155cm tall, 15-year-old girl who can't even look like a boy if she keeps her mouth shut on her face?

Obviously a Japanese separated name and appearance, but for once, she is Japanese.

Well, the contents aren't human.

Such, nagging, bumpy and whining, there was somehow a scattering of front door parts all around her holding her head in some regrettable way.

Apparently, she broke something big by hitting the front door with momentum.

But she didn't have anything in her hand, and all that, or the object that she thought hit her, didn't seem to be on the spot.

What the hell did she hit?

Waltz says he's taffed at the front door...

"Come on, there's going to be something wrong with setting up the house...... waltz?

From behind the building, a woman, equivalent to Waltz's sister, appeared as if she had spoken so.

Guess from her mouthful, this doesn't seem to be the first time Waltz has destroyed a building.

Such a waltz sister, without changing its tender look at the recurring sister's faults......

I started fixing the front door with a hand I was used to and finished the repair less than 3 minutes later.

"Yes, that's it"

"Honestly, I'm sorry. Sister......"

"I always say, as long as you make parts for the restoration, it doesn't matter, does it? You can fix it in a shorter time than a couple ramen can, and most importantly, you're free without doing it...... But if you're sorry, why don't you try your best to practice armor cover-up?

'Armor' she spoke of - it is an abbreviation for their body, called 'Mobile Armor', held by the Guardians in each of them.

The Guardians each have their own unique manoeuvre armor and use a technique called 'cover-up' to store the manoeuvre armor body in an out-of-phase space….

By putting out a "doll" from there, he was making himself look like a person.

In Waltz's case, however, it appears that certain circumstances prevented this cover-up.

Still, she looked like a human being because she used a manoeuvring armored optical camouflage to hide the figure of the body and display only the figure of a person.

That, I mean, her body, the manoeuvring armor, is just invisible in itself, nothing more than being behind her, all the time......

Inadvertently approaching a narrow passage or obstacle scrapes like an earlier entrance.

"I can't. I don't think it's physically possible..."

"Why don't we just cover up the body in an out-of-phase space? It's easy, isn't it?

"No, because that feature, it doesn't come with me. You know your sister, don't you?

With that said, waltz waving a bum in front of his face.

Listening to the conversation between the two without preliminary knowledge may sound like an utterly insane story, but as mentioned, in this day and age, entering and exiting the out-of-phase space is also not an impossible story.

... if there is enough space for about five new (...) Tokyo domes and enough funding to match a country's national budget, then we are talking about.

That is.

It wasn't common sense to have a system for out-of-phase space access in a robot that wasn't quite the same size as a person.

But the mad scientists who made them seemed to be geniuses beyond non- (...) common sense......

Most of the Guardians' bodies were equipped with out-of-phase space access systems that were small enough to be built into them.

Maybe their producers thought that this system would be essential as the Guardians lived among people.

Though.

Like Waltz, who could not hide manoeuvre armor in out-of-phase space, some people were not equipped with this system.

Instead, they seemed to be equipped with a slightly different system of hairs than the others.

"But... you have a much more advanced, 'space control system' than we do, right?

"Yeah, that's right..."

"If you don't know how to use it, though I think that's just practice?

"Yeah......"

The youngest son (?) waltz was supposed to be one of the Guardians ever made, not an exaggeration when it comes to aggregation.

In any case, the details of the body were equipped with a variety of ideas that no one else had, as well as a suspicious system called the "Space Control System".

But somehow, she's been in her life (?) It appears that even once, this system has never been activated successfully.

As a result, Waltz, at some point, seems to have stopped practicing using it itself.

"If we can't hide the main body... it could be a big deal someday, right?

"Yeah...... then I'll practice"

As for Waltz, he didn't seem too motivated to ride, but he couldn't even let his sister's words go unharmed from day to day......

She seems to have decided, with no choice, to follow her sister's words.

Then after lunch.

Go outside with your manoeuvre armor tilted in an exquisite position to avoid breaking the front door again......

And Waltz, who came all the way to the lab garden.

At that time, to join her practice, or my sister will follow along.

"You can't do this. Okay?

"Yeah. Well, get out of the way, I don't think anything's gonna happen, so I think it's okay."

Waltz waves over his head in the right way, while Waltz turns to his sister who looks worried with a soft look and then...

I started testing the system for startup.

"Start filling energy...... Flywheel connection, 85, 90, 95, 100%, done. Preliminary power check...... complete, system all green. Safety device disarmed....... hmmm. Doesn't that sound good?

Waltz was convinced of his success when he saw that the translucent letters representing the state of the system that was in his sight had all turned into the green "OK" letter.

Spatial control system startup sequence that has never been successful before.

Even though the transmission of power to the system has not even worked so far, today it has succeeded without any problems.

"(Maybe I can use it when I'm 15, targeted?

and waltz that reminds me of my birthday I just visited the other day.

She had remembered, at the same time, the story of a setting that was recognized as an adult at the age of 15.

- The story of a different world, with a medieval European atmosphere.

And she sent the execution command to the space control system where the energy fill was complete, grinning like a child who had received a birthday present.

... but at this time, she makes a huge mistake.

Without even knowing that this failure is the trigger for a story that begins in all worlds, crossing the 'horizon of events'......

Bun......

"... Huh? Waltz...... where?

Looking for a sister who suddenly disappeared from the garden, Waltz's sister.

... Yes.

At this moment, her sister disappeared from this modern world with every manoeuvring armor.