"That's right. Amplifying magic is only a side effect. Its true use is for ."
"Compression?"
Yes. Compared to ordinary magecrystals, the compression ratio is more than 100 times higher.
Jin thought about it. It is thought that eladolite works by taking in the magic element (mana) of the magician, storing it once, and then converting it into magic.
The process of storing mana is instantaneous, and no time lag is felt.
This can also happen with free magic element (ether), and it can be compressed more and more without releasing it. .......
"Matter creation?"
Yes. I'm amazed you came to that conclusion. Yes, with this mithianite, there is a possibility to create new elements. I heard my husband was thinking of ......."
"Apparently?"
"Unfortunately, he did not succeed."
Not even the , with its superior knowledge and technology, was able to do it.
"What happens when you pour in more and more free magical elements (ether) and compress them inside? The result is ...... collapse. The mithianite would shatter."
"I see. ......"
Jin looks disappointed.
Jin had also managed to synthesize elements as light as hydrogen and helium from free magic element (ether), but had not succeeded yet with heavier elements.
"Well, wait! The story is not over yet. ...... In the process, we noticed its ability to store <>, and that's how we came up with the idea of using it for authentication."
"What?"
The other day, when we analyzed the of the Kingdom of Celuloa, we determined that it had such a function, but we had not reached a final conclusion in our investigation that day.
In other words, he could not explain how a specific person could activate the target magical tool or machine by using the key seal.
Jin then left the analysis and left the Kingdom of Celuloa, so he did not know what happened after that, but it seemed that the analysis was probably not finished.
"Is it a certification ......?"
I was about to say, "What does this have to do with being able to store magic power such as mana?
"...... This is an authentication device in itself rather than being a < for authentication, isn't it?"
No.700672 broke into a smile upon hearing this.
"That's right. That's what I'm talking about. Your insight to arrive at the correct answer with just a few hints. Can you explain to me how it works?"
"Yes. We record the necessary information in this Mithianite. Then we compare that information with the input from the outside, and when the conditions are met, the function as a key is triggered.
Yeah, that's pretty much it.
"I knew it."
Jin then realized that the of the Kingdom of Celuloa also chooses its own owner.
Even if Oranje had tried to use it, it would have been useless.
"The magic that a mage possesses has a certain characteristic. As far as we know, it has three characteristic peaks. ......"
No. 700672 explains. As with fingerprints and voice prints, they are features that are expressed in the same bloodline.
Jin wondered if the giant golem, an ancient relic (artifact) of the Shoro Kingdom, might also detect such waveforms.
(......What about my way?)
Jin's method is literally to the waveforms, and if more than 90% of the waveforms match, he gives the OK.
In effect, the waveforms of any other than Jin's are rejected.
(Of course, there is no merit in making it a short form. ......)
Jin and his golem and automata have exactly the same waveforms as those of Jin.
Also, since the number of Jin's friends, the <>, is limited, there seemed to be no particular problem with the current method.
And one more thing.
Since Jin does not own any Eladolite (except for the ones he got from the Unifilers), it is the Magi Crystals that write the waveforms.
This one requires <, and can only be made by engineering magic.
On the other hand, in the case of Mithianite, the advantage is that it can be used simply by channeling magic power.
(I see, in the case of a key seal, it is possible to overwrite it again if the owner changes.
The explanation of No. 700672 solved all the questions about the key seals of the Kingdom of Celuloa.
"...... That is to say, this crystal cube is the proof of who my master is."
"You mean..."
"That's right. It proves my connection to the same masters, those who serve the .
He was sure that they would not take hostile action if he brought this with him, which was the thoughtfulness of 700672.
"Thank you very much. I will borrow it."
Jin thanked and received the crystal cube.
He looked at it carefully.
"But it's a mysterious stone, isn't it?
"Mm. This mineral is not originally from Ars. It is what is called a meteorite.
"A meteorite ......?"
He told me a surprising fact.
"It is said to have fallen in prehistoric times. That's why its origin is limited."
"Haha ......"
Jin thought, "Then, it is no wonder that the place of origin is so limited.
* * * *
After returning to Horaijima, Jin decided to think about his next plan.
It was noon. Erza had come back and prepared for lunch.
Today's lunch was zaru soba. Seaweed cultivated in Tatsumi Bay is served with a newly cultivated spicy daikon radish. This is a natural product, as cultivated ones are not available yet.
"Yes, it's boiled just right."
Jin praised Erza's cooking while slurping the soba.
"Hmm, I finally know how to get it just right.
It's hard to know how to boil soba. If you're not careful, it can become squishy very quickly.
At a certain soba restaurant, they say <>. The reason, he says, is that <>.
A quick word of caution.
After the soba-yu (buckwheat noodle soup), Jin and Erza enjoyed the after-meal buckwheat tea.
Erza talked about the smoked river fish she had made with Hannah, and Jin told her about the Elad Light that he had heard about from No. 700672.
"...... Well, that sounds like fun."
"Yeah, it was fun. I'm sure you've heard a lot of good things too.
And then, naturally, the conversation shifted to the next topic.
"I thought it would be a good idea to take Belial with us.
"Yes, I think so. Even if we can manage with the crystal cube that we got from the follower, I think it will be difficult to persuade Archelle to go.
I know.
"So, I agree that we should take Mr. Bellius with us."
Elsa and I agreed that we should take Belialus, a member of the puppet clan, with us.
"But, Jin, you can't go."
"Hey."
"...... dangerous. No."
The old man is right. I don't think your father should go this time.
"Just like when we went to the demon territory."
I'm telling you to use Jin's double.
"......" I understand.
The old man, Reiko, and Erza convinced Jin to give in.
he said.
The old man began to explain the current situation of Fort Crau, where Lefort de Orange had escaped.