"Hey, Brother Jin."

Huh?

I don't think that's the price.

Ah...

<

"Hmm, but if I get it as a reward and use it to spread the word ......"

"That's a good ......, then?"

Jin thought it would be fine as long as he did not do it for profit, but he was lost in thought when Erza unexpectedly interrupted him.

"Hmmm... ......."

"I'm sorry, I don't know..."

"No, that's fine."

Jin also regretted that he had not been thoughtful enough.

Jin-sama, how about something like this?

Seeing Jin and Erza in such a state, the clan leader Fabius offered a helping hand.

"We started mining for ore the other day for the redevelopment of the cave, and this is what we have found. I have checked and it seems that there are large reserves."

Fabius pointed to a container.

"Is this ......"

"...... mercury?"

"No. <?"

A magical isotope of mercury. I thought it had to be here somewhere, but now I know that it is produced in the territory of the Magi.

(At the time, he said something about an island in the south, so there must be other places where it is produced.)

) My eyes are glued to the demon mercury, while I think to myself.

"...... brother Jin, this mercury is different from what I expected."

"What?"

Erza, who had the mercury before Jin, reported to Jin.

"No mercury vapor has been generated."

"What?　......<>......I see. ......"

Jin pondered. There was once an incident in which a golem using <> caused a commotion in the Kingdom of Cerroa.

The fluid metal used at that time ...... seemed to be a magical isotope of mercury (Magi Isotope), and the mercury vapor was harming the user's brain.

But this one in front of me was different.

"Hmmm......... Somehow, the melting point is the same as mercury, but the boiling point is higher..."

"Hmm, I think that's what it means."

"It may be due to the magic molecule or the effect of free magic element (ether). ......"

In any case, the good news is that there seems to be little harm to the human body.

"This is wonderful, isn't it?"

Jin replied.

"That's good to hear."

Fabius was also relieved.

So, it was decided that the price would be the mercury.

"What should we do about the unit price ......?"

"I'll leave that up to Jin-sama."

"Well, even if you say so..."

As for Jin, he was an amateur in the market of such metal materials.

In the end, after consulting with the old man, I decided to call it the same as adamantite, because it is a valuable material. In other words, 10 million Touls per kilo (100 million Japanese yen).

But when I suggested this to Fabius,

"No way!　One-tenth of that amount will be fine!

He said, "No, thank you!" So we settled on one million dollars per kilo.

It is an afterthought that Fabius rolled his eyes when he saw Makina easily carrying a container full of more than 100 kilograms of <.

"Saki is going to be very happy."

"Hmm."

Jin thought that he would ask Saki to study this .

* * * *

<, Jin and his party visit other clan territories in turn.

>,<>>,<>.......

All the clans were pleased with Jin's golem horse and agreed to his proposal.

"I wonder if the fact that the demon clans are grouped by clan is because they have inherited the characteristics of the individualistic Haelians."

Jin spoke to himself in the moving .

"That may be so, father."

Reiko, hearing this, responded. Jin thinks that it might be the old <> that comes out in this kind of thing.

"But still, I didn't know you could get so much <>.

The other clans were also mining for ore, perhaps because they could afford it, and Jin obtained an average of 100 kilograms of <> from each of them.

As a result, he obtained about one ton of mercury.

Although, the specific gravity is about 13.5, and the apparent amount is only the equivalent of a large barrel of mercury.

"Hmmm, does from the north have a high content of free magic element (ether)?"

The (supposedly) collected in the south, where free magic element (ether) is scarce, exhibits physical properties that are almost the same as normal mercury.

"Brother Jin, there is a possibility of that.

"You think so too. The threads of ground spiders also vary in strength depending on their origin, so I think it's possible.

"I think Goshujin-sama's prediction is correct."

Ann agreed.

"Then, it might have something to do with the concentration of free magical element (ether).

In this case, Jin would like to check out the mercury collected in the southern part of Japan.

* * * *

"Oh!　Jin, this is amazing!

Sure enough, Saki was overjoyed.

"Saki, it looks safe, but mercury is mercury. Be careful with it, okay?"

Mercury poisoning is a real possibility.

"Yes, I understand that. I'll have Aal handle it."

That's a good idea. And ventilation. And don't forget to wear a mask.

If there is a possibility of doing experiments to determine the boiling point, we need to be careful not to inhale mercury vapor.

"I'd feel a lot safer if you could put on a simple space suit."

"Well, I'll try."

Saki smiled at Jin and Erza who looked worried.

"Be careful, old man, will you?

Jin was worried about her, so he reminded the old man as well.

"Yes, please."

Jin was finally relieved.

Saki may have called him overprotective, but Jin, who knew her in the past, could not feel safe unless he did this.

"Well, let's go to Mitsuho next.

Jin was still busy.