Where is the school city?

In Neon.

Where is the country of neon?

on Earth.

Earth in ......

Well, none of that matters, the important thing is that Nanaya feels like he has a chance to return to Gakuen City, or even to the ninja world.

Next, you need to do some experiments.

If the flames can burn the strange energy attacks in that "relay station", then he can survive in that "relay station" after he himself is flamed.

Then look for the world where the school city is located.。

This also has some ideas for seven nights.

For example, separate the clone.,Let them open the space crack.,Enter the world corresponding to the space crack.,If it's a school city or a ninja world.,Open the space crack in that world again.,Pick up the seven nights in the "transit station" to enter.。

Theoretically, it is possible.

But there's still a problem.,That is, the probability of successfully entering the school city.、Ninja world.。

In the infinite space-time, there are so many worlds that it is difficult to count.

There aren't many doppelgangers that Seven Nights can make, and although the probability of slowly searching for them is much greater than previously thought, but overall, it's still a hopeless kind.

"Seven nights, can you really go back?"

Fibre's eyes widened as he looked at the Seven Nights.

She really wants to go back to the school city.,Because her sister and her friends are there.,Although there are friends in this world.,But you can't want to go back just because you have friends in this world.。

Gotta go back.

"Well, there is still a key problem left, as long as it is solved, we will be able to go back. ”

Nanaya nodded.

But it's a matter of probability......

Sure enough, we should still improve our spiritual ability, and perhaps only through our spiritual ability can we better solve it.

Or, improve your spatial capabilities.

"Hmmm......"

Qiye bit his nails and thought.

Chelsea looked at them with a puzzled look on her face, completely confused about what they were talking about.

"The ......"

If you don't understand something, you have to ask.

"Where the hell is the school city?"

"Oh, it's a city. ”

"But I haven't heard of ......"

"Of course I haven't heard of it, because it's not a city in this world, it's in another world. ”

"Another world?"

Chelsea felt that she was getting more and more confused.

What is the other world?Heaven?Hell?Or what?

"Simply put, it's a parallel world. ”

Seven Nights Explain.

There are actually a lot of theories about the world and space, such as three-dimensional space, four-dimensional space, parallel universes, two-dimensional worlds, and so on.

Of course, two-dimensional is different from three-dimensional space, four-dimensional space, and so on.

That's not to say.

"Fibrey and I came here from another world by accident. ”

Seven nights explained.

It's not something that can't be said, anyway, the people of this world can't burn him as a heretic or something, but he can easily burn all the humans in this world, so there's nothing to reveal his identity.

Besides, even if he did, no one would want to burn him.

"Other worlds?"

"Yes, a different world from this world. ”

Nanaya nodded.

In Chelsea's puzzled expression, he explained to her where she came from.

Long.

"Oh!"

Chelsea nodded with a look of realization.

Although I don't understand it yet, I understand it, anyway, what Seven Nights wants to say is that he and them are not from the same world.

As for what kind of existence is the other world......

It doesn't matter.

"So, you've found a way back?"

"Pretty much. ”

"What do you mean almost?"

"There's just a key problem that hasn't been solved yet, I can't pinpoint the coordinates of the world I was in before. ”

Nanaya shook his head.

The only problem now is this, although it is not impossible, but the probability is so low that it is almost impossible to achieve.

Fibrey doesn't understand that.

Chelsea didn't quite understand either, she had no idea what spatial coordinates or anything like that.

So just shrugged.

"Why don't you use our current world as the origin of that coordinates. ”

"The world does...... Huh?"

Nanaya just wanted to shake his head, but suddenly he was thoughtful.

Of course, it is not possible to use this world as the origin of coordinates, so even if you get the spatial coordinates, there is no way to know which world that coordinate corresponds to.

But using other worlds as the coordinate origin, it seems that there can be.

For example, the original world.

That is, the world where Seven Nights are aborigines.

In addition to that world, the worlds that I have experienced now can be said to be just fantasies in that world, which is the so-called two-dimensional world.

In other words, the worlds we are in now can be regarded as based on the original world.

And the time when these worlds appeared in the original world is also different.

"Hmmm......"

Qiye bit his nails and continued to think.

Perhaps, you can use the timeline as the coordinate axis, but time does not know the beginning and the end......

Perhaps, we can use the concept of "two-dimensional world" as the origin point, and then the year, month, and day are used as the three axes of X, Y, and Z, and then the time when the work was born is the corresponding coordinate point.

"Wait, wait, wait......"

Nanaya continued to bite his nails.

It seems that there can be such works, and although different works may appear on the same day, the scope of the search is greatly reduced.

But there's still a problem......

"Celsie. ”

"Huh?"

"Next, please take care of Fibrie and Mayin, I will retreat for a while to study and study. ”

"Oh. ”

Chelsea nodded.

Although she didn't know what Nanaya wanted to do, Nanaya said so, and she didn't have much to do anyway, so she agreed.

Besides, it's not a hassle to take care of Fibrey, and the only one who needs to be taken care of is Fibre.

As for Mayin, she is a girl who has commanded thousands of troops and horses, and she still needs someone else to take care of her?

Red pupils and black pupils are not needed either.

"Fibrie, you have to be obedient with Chelsea during this time, you know?"

"Where are you going for Seven Nights?"

"I'm going to study how to go back.,All in all, we've got to be fully prepared.,We can go back to the school city.,Understand?"

Nanaya laughed, rubbing the little girl's head, making a mess of the smooth blonde hair.

Fibley didn't care.

Hearing what Qiye said, he nodded obediently.

"yes, I see. ”

"Very well, when I come out, maybe we will be able to go back. ”

Seven nights touched the little girl's head again.

Nodding at Chelsea again, he was about to leave.

But the red pupil and the black pupil walked in.

"What are you going to say, going back, where are you going?"

"It's not. ”

Nanaya shook his head.

But I didn't say much, and at this time I learned that it was possible to go back, and I couldn't wait to study it.

"Anyway, if you want to know, let Chelsea explain it to you, I'll go first. ”

After speaking, without waiting for the red pupil and black pupil to say anything, he ran directly to the space of his right eye.

Red Pupil and Black Pupil glanced at each other.

The two sisters didn't understand what the hell Seven Nights was up to, so they could only look at Chelsea, hoping that Chelsea would answer their doubts.

But Chelsea was also a little helpless.

"Don't look at me, I don't know. ”

She shook her head.

Although Qiye explained patiently, she didn't quite understand that, although the level of science and technology in this world is still quite high, but the basic education is not very good, and the theory of space, she has never even heard of it.

"Anyway, in the words of Seven Nights, neither he nor Fibrie are from this world, they just came to this world by accident, and now they are going to study ways to return to their original world. ”

That's all she could understand.