Emperor Taishang...... was considering the airship he would present to the Yuan empress.

"It should be about half the size of and ......".

He is very excited about the idea of a catamaran ...... because it would not be buoyant enough.

Elsa didn't say anything, but rather cooperated.

"If you are going to make a catamaran, you might want to make the air sacs a little thinner," she said.

"I see, you're right."

Jin is drawing a sketch with a pen on a piece of wooden paper. The purpose of this sketch is to summarize the concept of what he is going to make.

Since Erza is also cooperating, it is necessary to share such visual information for the purpose of communication.

Finally, we decided to make it about half the size of the catamaran for the <>. The capacity was also reduced to five people.

"I think I'll also use a force field generator for ...... safety.

Jin thought that if the device could be programmed to be maintenance-free and to erase itself in case it was about to be dismantled, it would prevent the technology from leaking out.

Jin and Erza also discussed the habitability and decided on a color scheme.

After the rough idea was settled, Jin and Elsa decided that Reiko would be the one to make the house.

Jin and Elsa were relaxing over a cup of green tea that Reiko had brewed for them.

On their knees were Yu and Mio, who were picking rice crackers for tea, and the room was filled with the sound of crunching.

They were thirsty and wanted to reach for the tea set in front of their parents, but Reiko was there to make sure the tea was cool enough to drink and offered to them.

"Thank you!"

The twins thank her and drink the tea. They seem to be well disciplined.

While gently patting Yu and Mio's heads, Jin and Erza continue their conversation.

"Let me change the subject..."

"Yes?"

"Do you know that Hanna is doing some interesting research?"

"Oh, you mean the doppelganger?"

"Yes."

A doppelganger, in layman's terms, is a brainwave control system.

The doppelganger moves according to the operator's thoughts. There is also sensory feedback.

However, the operator still has his/her own senses, so the feeling of <> does not disappear.

So it took some getting used to.

Hanna thinks it would be possible to make it possible to <> at the level of consciousness.

"You seem to be doing a lot of things to see if you can do it using <> technology."

"I think it would be great if you could do it," he said.

"I wonder what happens to the consciousness of the original body then?

Jin was curious to know if he would still be conscious, or if he would be asleep.

After all, in modern Japan, where Jin was living, there were many imaginings of virtual reality (VR).

It was similar to the one called .

Jin recalled that it was something like ......, which sends electrical signals that stimulate the five senses directly to the brain.

"Could it be possible to transfer consciousness to an automata or homunculus and live a long time ......?"

"That's a bit much."

"That's right ......."

Although it was realized in the story, Jin remembers that there was a discussion about how to make the visual information and the voice come out in reality.

However, Jin was not so interested in these issues, so he did not know much about them.

However, Jin had a feeling that Hannah would be able to do something about it.

* * * * * * * * * * * *

On May 5, the airship, a gift for the Emperor Taesang, was completed in two days, notwithstanding what was to come of the <>.

The airship is a silvery-white, moist plane. It is 25 meters long. It has two air sacs with a maximum diameter of 7 meters.

The air sacs and the cabin are arranged in an inverted triangle when viewed from the front.

This configuration reduces pitching and rolling.

"Well done!"

Not only Jin, but also Elsa wanted to return the favor to the Emperor.

"Your Majesty, you killed yourself for the sake of this country and the world."

"Yes. I hope His Majesty can enjoy a peaceful life after this."

That was the feeling of both of them.

What's the name of this airship?

How about <>?

EMPRESS, which means "female emperor. As it is, Jin thought that it would be a possible name for a plane dedicated to the Emperor Taisho.

"I think we should check ...... first."

Erza agreed in principle, but decided to hold off just in case.

I have also made a special golem so that I can leave the piloting and maintenance to him.

The base is a craftsman (Smith), but it is made of light silver to make it lighter.

"The name ......<...... is not good, is it?"

"Hmm, that's the guy who used to live with us, the servant."

Is that right?

"...... followed us on our wagon ride from Potlock to the country."

Oh, that time.

I'm talking about the trip with Erza and Reinhardt.

The name "Jin" is taken from <>, which is not appropriate since Lilienthal crashed in the first place.

<>...... would be confusing."

Now Jin, from the Wright Brothers. This is also not appropriate because it is confusing with the magic <> (although the R and L are actually pronounced differently).

"Well, how about <>?

(From the name of the Wright Brothers' plane, since it means <>,

"Hmm, that's a good idea.

Elsa agreed.

* * * * * * * * *

On May 6, Jin and Elsa accompanied Reiko, Edgar, Yu, and Mio to Miyagi.

"Oh my God, you gave this to me?

"This is great, aunt."

Not only the Emperor Taishang, but also the new emperor came to see it.

By the way, the airship that the emperor has been using is the Conlon 2 type, which was donated by Jin two years ago. This one belongs to the new emperor.

"I was thinking of naming it .

"No, it is not."

"There has only been one other female emperor in the history of the Shoro Empire besides your aunt.

So Jin quickly used his engineering magic to write <> on the catamaran. > on the catamaran.

He also introduces the golem <> who is in charge of piloting and maintenance.

"You can trust <> to take care of it, sir."

"Oh, I'm so glad. Jin-kun, Erza, thank you!

Emperor Taisho accepted with a big smile.

"Ah, twins, it's been a long time!

"Good day to you, Heika!"

"Heika, how are you?"

Emperor Taisho looked at the twins with narrowed eyes as they greeted each other in a lisping voice and gently patted each other on the head afterwards.

Afterwards, Jin made a proposal for a possible hiding place in the palace.

"Yes. ....... The other side of Lake Tosmo is a good idea. I'll look for a place along that line.

It seemed that the Taisho emperor wanted to live near his familiar place of residence, Leusert.