The next day, after breakfast, Jin took Elsa, Goose, Tenkunhan, Keisu, and Toy to Miyagi.

They were accompanied by Reiko and Edgar.

As we parked the plane on the usual landing pad, the Prime Minister, Jung Fors von K?bsler, flew in again.

"<

He has seen <> through the window and is anxiously awaiting Jin's arrival.

"He also said that since Kunlun is coming, there must be many interesting things.

"Yes."

With a wry smile, Jin introduces his companions to the Prime Minister.

Elsa and Goose are omitted, and Tenkunhan, Keisu, and Toy. They were surprised to be suddenly introduced to the Prime Minister.

Together with two knights of the Kingsguard, the group went to the female emperor.

"Your Majesty, it has been a long time.

Jin is ushered into her office and greets her first.

"Welcome, Mr. Kunlun. Please look up.

He looks up to see the smiling face of the emperor.

"What good news do you bring me today?"

It seemed to be a rule in the empress's mind that when Jin came out of the blue, it was always a good story.

"Yes. ....... First of all, take a look at this.

Jin took out a sample of the subterranean spider silk (GSS) from the luggage that Reiko had left with him.

The Empress took it, stroked it, rubbed it with her hands, and tried various things with it, then handed it to the Prime Minister who was standing next to her looking interested.

It feels wonderful to the touch. It feels like silk, but it is not silk.

It seems that the queen understood the quality of the fabric.

"Thank you very much. ...... Then, before explaining the fabric, I would like to introduce them. My names are Tengkunhan, Keith, and Toy.

"Tenkunhan?　I have heard of you. Allow me to give you a direct answer.

Yes, Your Majesty. I believe you used to be known as a magician.

For the first time Tenkunhan spoke.

"Yes, I've heard of you.

"I'm very sorry, Your Majesty."

"Your Majesty, that fabric was discovered by Lord Tenggeunghan and brought back to this country."

"Oh, I see. Thank you very much for your efforts."

"...... ha, thank you again and again."

Keisu and Toye then introduced themselves, but they were not allowed to give direct answers yet.

"They are ......."

Tenkunhan was a little hesitant, but decided to speak up.

"They are from Mitsho."

"......"

After a short pause, the emperor opened his mouth.

"You must be the messenger who came to introduce us to these excellent materials.　Thank you."

Hearing this, Jin was impressed by her majesty.

If that is the case, it can be an ...... excuse, albeit a bit painful ......, for not entering the country openly since official diplomatic relations have not yet been established.

"Let's not mention that we took a wrong turn on the way and were late arriving at Miyagi."

The Prime Minister then gave a brief explanation of diplomatic relations to Tenkunhan and Mitsuho.

He said that a formal treaty would be signed this fall.

After that, he said, a customs gate will be set up at the border, and anyone will be able to come and go as long as they report to the gate.

Of course, the entry of hazardous materials, large quantities of goods that would disrupt the economy, and criminals would be stopped at the border crossing, but these are the two general points.

After that, it was explained that this cloth was woven with threads produced by <> and that there are regions in Mitsuho inhabited by underground spiders.

"Thank you, Jin-kun, for the good story."

He was no longer called Kunlun-kun, but in his usual tone.

"And Elsa, we are going to pay you a reward from our country for treating the messenger who was badly wounded.

Of course, she is a court-appointed healer (Reichsartz)," said the emperor.

The emperor said, "I will pay you a state honorarium for your services.

"And the men who attacked you?"

Now the Prime Minister spoke up.

"I'm sure they are the remnants of the Unified Party. They were near the border when the Unified Party (Unifiler) was destroyed, and they smuggled themselves into the country with their golems.

Jin and Erza nodded silently, but Tenkunhan and the others did not know what the Unified Party was, so the Prime Minister gave a brief explanation and then proceeded.

According to him, they were what is called who would do anything for money.

"But thanks to you, we were able to expose the organization. For that I thank you.

The Prime Minister concluded.

Jin was a little disappointed at the depth of human karma.

"Well, Your Majesty."

After all the immediate business, Jin decided to talk about the future as he had planned.

"Please take a look at this."

Jin showed us a plate and a mug made of GSP.

They were translucent with a milky white color. In this respect, too, they seem to be different from those from Horai Island.

"Well, what is this?"

"This is a tableware made from the threads of a subterranean spider.

"You can even make things like this?

This was made by metamorphosing a piece of cloth that Tenkunhan had given him into a resin.

When Tengkunhan saw this, he rolled his eyes in amazement.

"It's light and has a nice touch, isn't it?

"Yes. And it doesn't break when dropped, and it doesn't stain easily.

"That's a great use for it!"

That's not all.

What Jin took out of the package that Reiko made him bring was a .

Polyacetal resin is used as flat bearings for light loads even on modern Earth.

If used properly, it could also be used for bearings for horse-drawn carriages.

And for the offered by Jin.

The Prime Minister, perhaps sensing this, calls on the Minister of Magical Technology, Degas Furt von Manischlus.

"......Hmmm."

"...... how do you feel about that?"

"No, I assure you that it has a wide range of applications. I would call it a revolution in materials!"

"Finally, ......."

"There's more!"

The Empress screams with delight.

"Yes, please take a look at this."

The last thing she took out was the communication device.

When you press the button on this transmitter, the magi crystal on this receiver glows.

"Oh my!"

"Well, depending on how far it can reach, it can replace the <>!"

The Empress was genuinely surprised, and the Minister of Magic and Technology Degauss had immediately thought of its application.

"This is a magical tool brought back from the Land of Mitsuho by Lord Tengkunhan.

From what I have heard, this is also a technology that remained in western Mitsuho.

John Dinney had put it off, and Jin had not noticed it yet.

"If we can match the blinking patterns to the letters, I think we can send short sentences," Jin added.

When Jin added, the Prime Minister was so pleased that he jumped up and down.

"That's exactly right!　Thank you, Mister Jin and Mister Tengkunhan!

In short, it was Morse code.

If this technology could be applied, it would be possible to send voice messages as well, but Jin did not advise that far.

Thus, it was found that the ground spider silk (GSS) produced in Mitsuho could also be used as ground spider resin (GSP), which would later develop into a major industry. It later developed into a major industry.

This communication technology, named <>, was also developed from this point.

The name of <> will be passed down to posterity as the magical engineer who pioneered this technology.

Although he continued to insist that he was not responsible for the development of the <>, .......

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

"Well, Mister Jin, thanks to you, we're doing very well."

And the merchant Eckart Tekres was one of the beneficiaries of the resin.

"If we ask him to make something like this, he makes it exactly as we want it.

Tenkunhan chose not to be involved in the development of the <>, but to live his life as a magi engineer exclusive to the Teclez Trading Company.

According to him, <>.

He must have realized something after having traveled through the wide world.

Thus, the commotion about the underground spider has been settled.

* * * * * * * * * * *

The old man, who got the information, immediately obtained a sample of the spider.

According to the sample, the largest size of the underground spider from Mitsuho is 30cm in length.

They eat not only free magic element (ether) but also moss and mushrooms.