January 30.

At the appointed time, Reinhardt went as a diplomat to meet HIRO MUTU, the Emir of Mitskho.

"I have been expecting you."

Hiro Mutu opened the door and greeted Reinhardt.

"I have accepted all the proposals made by Her Majesty, the Empress Shoro," he said.

"Oh, that's a big deal.

Therefore, I have one favor to ask of you, Jin-sama.

What is it?

Jin is treated as an attendant on official occasions.

I would like to ask you, Jin-sama, the Magecraft Meister, to certify that this World Congress is for the peace of the whole world.

"Of course, of course. It is my wish as well."

Jin immediately accepted Hiro Mutu's offer.

"Thank you very much.

Thus, the Mitsuho, who were said to be a different people, and the nations of the East took the first step toward building a cooperative relationship for the future.

* * * * * * * * * * *

"Well, Jin, it was a great success!

At noon the same day, <> left Miyako.

"But Jin's popularity is amazing.

This time Jin had not done much, but the send-off was even bigger than the last time.

"But it was fun."

Reinhard closes his eyes and is deep in thought.

"That's the good thing about being a diplomat, isn't it?"

Reinhardt has made it all the way to the Kingdom of Elias and back. Jin thought that he must be remembering those days.

"Brother Jin, brother Rai. We're about to cross the Harihari Desert.

Erza's voice comes out. The super-fast flying had returned to the Shoro Empire in a little over an hour.

As it approaches the Shoro Empire, it slows down to less than half its original speed.

In the end, Jin and his crew returned to Loizart in about two hours after leaving the town of Miyako.

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

"Thank you, Reinhard.

The emperor was in a good mood when he received the return letter from Hiro Mutu and checked its contents.

"Thank you, Jin-kun and Erza, for your hard work.

The emperor smiled softly and softly. It seems that her public face is over.

"So, did you find anything interesting?

It's 5:00 P.M., the end of the day.

"Would you like to have dinner with me afterwards?　Tell me about what you did over there then.

Jin, Erza, Reinhard, Reiko, Edgar, and others moved with the emperor to the reception room of the palace.

"Jin-kun has inspired us to expand the menu here.

The emperor is a little happy. But...

"But you know ...... it doesn't taste as good as the food at Jin-kun's place. And ......."

And?　What's wrong?

"...... it's getting cold."

"...... Oh, ......"

The Emperor of a country eats his meals, so I guess he has to taste the food.

If the food is brought to them after that, it is understandable that it gets cold.

In addition, grilled fish and tempura were served.

Both of them would not taste half as good if they were cold.

"...... at least <<> or <>".

Jin thought that it would be better to heat up the whole food from the inside rather than just heating it up, so he used his original engineering magic <>.

Like the microwave oven, this magic uses electromagnetic waves, which are classified as microwaves, to heat up an object.

I used it because it was on a ceramic plate, not a silver plate.

"...... Oh, it's warm!"

"Is it a little better?"

The reheated grilled fish is not as good as the hardened one, but it is better than the cold one.

The same goes for tempura.

It is inevitable that the taste of reheated food is basically lost.

(Hmmm, I wish I could do something about this point.)

(Hmm, I wish I could do something about this) Jin thought as he put the reheated tempura in his mouth. Then he came to a conclusion.

"A thermal barrier!"

"What?"

What?

"...... have you come up with something?"

Reinhardt and the female emperor were surprised to hear Jin suddenly speak up, but Erza remained calm.

The reason she was silent was because she was thinking about something, and she knew that Jin would suddenly reactivate.

"Oh. ......well, the flow of magic control (Magi sequence) over there is like this, so we can do the Magi Formula here and the Magi Formula over there like this ......Yeah, it looks like we can do it. Yes, I can do that."

Now everyone waits patiently for Jin to explain.

"Well, the one I just thought of is the . It keeps the object from getting cold by minimizing conduction, convection, and radiation except during poisoning. At the same time, it should be possible to keep cold objects from getting warm."

"I don't know, but that's great, Jin!　Please make it!

The emperor jumps at Jin's suggestion.

"Yes, sir."

Jin immediately accepted.

"Then I'll come and report back to you as soon as it's finished.

"Please do."

At 7:00 p.m., Jin and his team left the palace. Reinhardt had to stay overnight because he still had to make a detailed report.

With a jump, the Conlon 3 lands on the rooftop of the mansion.

"Ah, you're back."

"Yeah..."

Horai Island, Kunlun Island, the village of Kaina, and here in Loisart.

Elsa and I spend the most time together here and in Horai Island.

This is where I can relax and feel at home.

"Father, Elsa, why don't you take a bath?"

And always and everywhere, Reiko is Jin's number one attendant.

"Yes. It's been a while since I've had a bath at home."

"Yes..."

I'll wash your back.

Please do.

The hectic days had come to an end.

Jin was able to relax at home for the first time in a long time and healed from the fatigue of his trip.