Inside the tent, one of the maids, Agnes, came with a man.
　The young man, who seems like a nice guy, a simple peasant, prostrates himself as soon as he enters the tent.

"I am honored to have an audience with you...
Relax, you don't have to use unfamiliar language.
"Ha, ha - thank goodness I'm happy.

　The young man was horrified at me, even though I said it was okay.
　The proof of this is that he was frozen in place, not even looking up from his prostrate position.

Tell me more about it. I know there is something you need to ask of me.
"Oh, no way to ask!
Yes, then tell me a story.

　What's the "then"? I'm going to go into it, but you can't go into such detail with a nervous person.
　I just encourage them to talk.

"Hey, we're from a village called St. Maur.
Yeah, so?
"St. Maur is warm and it's like summer all year round,
...... I see that it's colder here than back home.
"Yes, yes!

　A young man who responds without looking up, with trepidation, and still prostrate.

　It's been chilly for a while now, it's the change of seasons.
　It's the change of seasons. It's natural for people from everlasting summer to be uncomfortable.

"Okay, I'll see what I can do. Can you give me the night?
"Oh, thank you!

　　　　　*

So, what are you looking for, Mr. Alec?

　Ange, who is accompanying me up the mountain, asked me, "There's an ore called refacto.

"It's an ore called refacto.
"Refacto, is it?
Yes. Angel, when you were in the house, you used to wear shoes indoors, especially in winter. Why is that?
"Huh?　Um, ...... because I'm going to get burned?
"Correct

　First you go up the steps, then you turn around, reach out to Angier and pull him up.

Carlisle's house has an in-floor heating system called Hypocaust, but it gets too hot in some parts of the house sometimes, so he wears shoes in his room as well.
"Yes.

　Angel staring at me, nodding.
　So?　And quietly wait for my explanation.

"There are many ways to keep it from getting hot. There are many ways to keep it from getting hot. And so on. But I thought of a plan.

　As you walk, you pull out your wise man's sword and hold it at arm's length while continuing.

This wise man's sword, the hollyhock, usually doesn't change no matter how much magic you pour into it.
"Yes.
I thought, "Why not do the same thing?
"...... ha!

　Now I feel like I don't understand one thing, Angel.
　Meanwhile, I felt the presence of what I wanted.

　I kept casting a search spell, trying to figure out if it existed.
　I was right above the thing I wanted.

"I'm going to get it now, Angie, give me some space.
I understand.

　As I was told, obediently leave Angel .

　I thrust the sword of the wise man into the ground, into the rocky face of the crag, and filled it with magic .
　It's nothing out of the ordinary, just fire magic.
　But the wise man's sword - through the hibiscus money - increases in power.

　The flaming magic spread downward, melting the rock to mush.

　I stared at the melting process, and then...

There it is.
"What is?
"Look.

　He pointed to the rocky surface I had melted - the ground.
　Sensing that it was safe to go on, Angier came to my side and peered into the hole I had made.

"Is that a strange-looking rock?
It's an odd shape, or rather it's in the ground, the result of the surrounding area melting and leaving only that part unsolved. The plaster was poured into a mold to make a proper shape. It's just like that.
"This is a refact?
That's what it is.
"I see. ...... It's amazing that even though Alec-sama went easy on you, it still remains unmelted.
"No, Angier.
"Huh?　What's the difference?

　I bent down for a moment, took Angier's hand and placed it in the palm of my hand, picking up a piece of the refactor.

Wow!　Hot--not hot, no?

　Angel, who looks at the hole in the palm of his hand, alternating between me and the refactor, amazed.


　The hole was still red and melted into mush around it.
　Angier was surprised to see that the remaining burned-out refacto in it was not hot at all.

　　　　　.

　The next day, outside the tent.
　About five hundred people gathered with the young man from Sao Paolo who came yesterday to petition the government.

　We were able to solve their problems, so we gathered to teach them.

　There is a rocky ground between me and the people of Saint-Mor.
　The ground was dug in plain sight from the side, and a fire was burning underneath the rock slabs of ground.

　At one corner of the plank is a square block.
　All in all, it was a protruding steak plate.
　It's like a larger version of it.

　It's like you're about to grill something with it.
　Naturally, the people of St. Maur's were puzzled when they saw it.

"Come on, try on it.
"Yeah!

　The young man is astonished, the rest of the people are buzzing.

............ Sorry about that.

　The young man froze for a bit, then flopped down on me again.

"Yeah?
''I'm sorry for being out of line and causing trouble for the Vice-Emperor. By all means!　By all means, only life!
Oh, I thought it was a punishment. It's not.

　I smiled at him.
　The young man looked up fearfully and the others were more and more confused.

　All right, let me do it first.

　He took off his shoes and stepped barefoot on the stone slab.

　There's more noise.

"This is a new material I've developed. No matter how much you cook it, it will only get warm enough to touch your skin.

""........................ eeeeeeee!"

　After a long pause, everyone in the room exclaimed in surprise.

Normally, it burns when you set it on fire and gets hot even if it doesn't. But with this material, no matter how much it burns, it only rises to the level of human skin. Take a ride.

　Further prompts.
　A young man in prostration looks at me, then at his countrymen.
　Then he stands up fearfully, takes off his straw sandals, and climbs onto the rock slab.

It's warm!
Hey.

　I smiled and gently stepped back from the slab of rock, smiling.

　The young man's reaction triggered the people of St. Maur's to come up to the plank one by one.

It's true, it's warm on the plank!
"It's rather hot in the air around you!
"Hey, come here!　It's warm inside in this protruding hut!

　At a little distance, I watched the reaction of the people.

　I built a hut, and the effect is exactly what I wanted.

　There are several types of heaters, but most of them have one common problem: they all have hot parts and cold parts.

　With underfloor heating, of course, the ground is hot, and with fireplaces and the like, the part that is warm to the flames often has a cold back.

　The kotatsu, a specialty of the East, has a weakness: if used incorrectly, it can lead to a cold.

　This was overcome by using a refacto as a building material.

　If the building material itself is a refactory, the entire perimeter will continue to emit the temperature of human skin, making it equally warm no matter where you are in the room.

　If I had to say, it's theoretically only cold in the center, but it should get warmer as you go along.

'Wow, I never knew there was such a thing.
I thought you were going to build me a house fast and put fireplaces all over the place.
"That's the Vice-Emperor,

　I was pleased with the outcome of the new material, as 500 people are happy to have a successive refactoring experience.