Horaijima was busy with the aftermath.

Fifty craftsmen (smiths) were dispatched to repair the damage to the original <.

In the process of repairing, they are naturally allowed to study the technology.

The information obtained was sorted out by the old man and categorized into those that were worth learning and those that were not.

Jin himself is working with Marikka on the redevelopment of <>.

Without Marikka, the "superintendent brain" of Onogoro Island would not have allowed him to do anything.

"<>, it's hard to call you as it is now, so can I give you a name?"

One day, Marikka said something like that.

Yes, of course.

"Good. I'll call you from now on."

Okay, I understand. From now on I will call myself .

Jin was later told by Zion that < means <.

<>'s permission and 's cooperation, the living facilities were remodeled.

"It's a much better place to live now, isn't it?"

"Yes, yes, that's just like Jin!"

Sion also came to support Marikka and lent his wisdom to remodel the house in the style of the <> clan.

* * * * * *

"The only thing left to do is to stop the free magic element (ether) condensation, but this is the hard part ......."

Jin returned to Horai Island via <> using the warp gate provided, and consulted with the old man and Erza.

<>.

"Yes."

<>. Mages convert free magical elements (ether) into magical elements (mana) on a cellular basis to obtain energy to cause magical events, but the conversion rate is constant from person to person and does not change rapidly.

The conversion rate may increase with training and growth, but the increase is gradual.

What would happen to such a mage if he were suddenly exposed to dense free magic element (ether)?

Since the conversion rate is the same, if the concentration of free magic element (ether) is doubled, the amount of magic element (mana) produced will also be doubled. However, since the amount of mana to be consumed remains the same, there will be a surplus of mana.

This excess mana is transformed by the slightest stimulus and becomes uncontrolled magical energy that torments the body.

It may be a little easier to understand if we compare it to acute diabetes.

Or perhaps it would be easier to compare it to oxygen concentration. A little is fine, but when exposed to too much oxygen, the body quickly runs out of energy.

Too much of a good thing.

"We have to think in terms of not years, but centuries. ......"

"But where are we going to send the collected free magical elements (ether)?"

<<

Thinking for a moment, Jin understood what the old man meant.

"I see. So it is as it is now.

"I guess so. ......"

The first thing that comes to my mind is that ferocious monsters and beasts will move south. If that happens, normal animals will become extinct.

"Indeed."

There are also ether tanks, mana tanks, mana cylinders, and mana cells.

The stockpiling of energy could be useful ...... in case of emergency.

"I'm thinking about it. I'll be there when things calm down over here."

* * * * *

True to his word, Jin visited No. 700672 the next day and explained in detail what had happened.

"...... and so on."

"Well, that was an interesting story.

When he had finished listening to Jin, he praised him.

Jin-dono, you did a good job.

He then expressed his own opinion.

"It seems that my master was indeed a member of the .

< were divided into and , the Residuals into and , the Emigrants into and , the Radicals into and , and the Moderates into , and <. >>The moderate faction was divided into the and the .

The faction that migrated to the current demon territory and became the founders of the demon tribe was the <>, as Jin had guessed.

"Couldn't the first number of 700672, 7, represent such a classification?"

Jin asks what comes to his mind.

"No, I haven't heard anything about that, but it is quite possible.

It seems that 700672 was also unaware of this.

"The 600012 that Jin-dono met before, that is, the ones starting with 6, may have been pioneers," he said.

But he is not sure.

"Next time, could you bring this Marikka over?"

"Yes, of course."

He is curious about the presence of someone who has inherited the characteristics of his masters.

"Well, I think it's a wise decision not to mess with the distribution of free magical elements (ether).

"I see."

I think it's best not to mess with a biota that has been stable for tens of thousands of years.

"Yes, sir."

Jin was relieved that the 700672 said so.

"But I am surprised that you know about <> or ...... the <> who have remodeled this planet."

"Is that so?"

"Mm."

Although 700672 was made on Hale, it was in an incubator at the time, so I don't know much about <> at all. Therefore, I do not know much about <> at all.

Therefore, he says, he has a desire to know about <>, if only a little.

"I never thought such feelings would arise in me," he says.

Jin, however, affirms this feeling.

"No, it is the land of your fathers, isn't it?　I think it is natural that you would want to know about it.

Hearing these words, No. 700672 smiled.

"Thank you, Mister Jin."

"No, thank you."

"...... Well..."

The 700672 changed the subject.

"What are you going to do about that mobile base?"

"I'm going to leave it as it is for now. I think we should leave it as it is for now.

"Yes, that's true."

At this point, Jin decided to ask for advice about something he had been thinking about for a long time.

"There is one thing I would like to ask you.

"Yes, let's hear it."

"Actually, ......"

Jin began to speak slowly.