Jin and his team began to consider the possibility of creating a better Magi-resin.

"First of all, can't we improve the performance of by mixing it with something else?"

"A mixture?"

"Yes."

refers to any resin that reacts to magic power, and is what is inside a typical golem.

Typical examples are resins extracted from trees that contain magic power and <>, which was also put to practical use by Adriana.

"We need to improve the conductivity of the magic power and make it more powerful. That's what we need to do.

Rubina reacted immediately when Jin said this.

"What about mixing conductivity ...... with mithril powder?"

"Oh, yeah. That's what I was thinking."

Jin said that a too expensive mixture would increase the cost and hinder its widespread use, but an additive of that level would be OK.

"We have to try it first."

So, with Rubina at the center, Jin and the others began experimenting with a magical resin (magiresin) mixed with mithril powder.

< of the type was successful at first.

The mixture increased the output by a factor of 1.5 and the reaction speed by a factor of 2.

"I don't know if I can go any further.

However, Rubina was not satisfied. To her, Jin said,

"Yes, I think so. Let's change our way of thinking. Let's think about the theoretical aspect of what the addition of ...... mithril silver powder meant.

I advised him.

"Hmmm ...... meaning ......."

Rubina thought about it, but Grina was not so sure,

"You expected it to have the same effect as adding it to metals to make magi-based alloys, right?"

She commented.

For better or worse, Rubina was still a sensible thinker and not very good at thinking theoretically. And understandably so. She is only 10 years old.

"So, let's think about again. Why does something like sap ...... like pine resin react to magic?"

"Let's see,......"

"Could it be ...... that some of the atoms that make up the ...... resin are magical isotopes (magiisotopes)?"

Rubina pondered, and Grina offered a guess.

"Yes, I think it probably is."

Surprisingly, Jin also did not know much about magiresin. This is because it is a material that is not usually used.

"So, the higher the ratio of magical isotope, the higher the performance against magic power should be.

"...... Jin-sama, can you do that?"

Marikka, who had been silently listening to the younger man's opinion, opened her mouth as if she could no longer remain silent.

"Well, I'm thinking that maybe we could use the <> to age them."

The <> is a storage with an ether ratio of 80 percent or higher, and the purity of the magic material increases as it is stored in it. In other words, some of the atoms are gradually replaced by magical isotopes.

"I didn't know there was such a thing. ...... Amazing!"

Rubina had never heard of such a thing, and was frankly impressed.

"Now all we have to do is sorting and concentration.

Jin said, "We have to sort out the magic resin that contains a lot of magic isotope (magiisotope) and further concentrate the part of magic isotope (magiisotope).......

"I haven't figured out how yet, though."

"That's just as well Jin-sama. I'd like to come up with something too if that's the case.

Rubina said casually.

Rubina has a lot of inspiration.

As soon as Jin said that.

"That's right!　We just have to pass a magic nerve wire inside!

came out of Rubina's mouth. Jin said,

"I'd say that's a good idea, but I've been thinking about it too. It's true that the reactivity will increase, but the power will remain the same. But it won't change the power. It would also increase the production cost.

I pointed out.

"Oh, I see. ......"

Rubina was a little disappointed, but not discouraged at all and started thinking again.

"Jin-sama, then, why don't you put some magi stones or something in the important places corresponding to the joints?

This time, Gulina made a suggestion. But that was also something Jin had tried the other day.

"I see......... You are indeed Jin-sama..."

Sighs Greene.

"But you two are great! I had a lot of trouble coming up with that idea myself.

Jin praised them both.

"...... Jin-sama, why don't you just find a cheaper and better-performing medium instead of sticking to magic resin (magirezin)?"

And Marikka also expressed her thoughts.

"Yes, I think that's a good idea too. I experimented with ."

However, the performance was not as good as expected, Jin explained.

"In the end, <> was the best choice."

Jin concluded his explanation by saying that this line was abandoned because of its high cost.

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

It was lunchtime before I knew it, so I decided to have a meal. It was a nice change of pace.

"Wow, that looks delicious!"

Reiko is following Hitoshi D., so Luna and Soleil have prepared lunch.

For a moment, Jin wishes he had a <>, but it's difficult since he is working with Jin D.

Because Reiko's control core is not designed for such parallel processing, and if he controls mini Reiko, his own actions will be interfered with.

Now for a quiet note.

It is cold barley today.

In late April, the daytime temperature on Horaijima rises to nearly 30 degrees Celsius, so this kind of menu is appreciated.

The red and green cold barley mixed in with the white cold barley adds accent and coolness to the dish.

Eggplant and thinly sliced cucumbers can be added to the sauce as desired.

Janji (ginger) is also available, which can be grated and added to the dipping sauce to enhance its flavor.

Jin simply ate the soup, Rubina added cucumbers, Grina had eggplant, and Marikka had jhanjie.

"Oh, it was delicious!"

After the meal, it's time for a leisurely tea break. Today it's cold barley tea.

"It's nice and cold. More tea, please."

"Don't drink too much ...... and get a stomach ache, okay?"

Jin is careful. When he was a high school student, he once drank a lot of ice water because it was too hot in summer and got a stomach ache. He was miserable for about half of the summer vacation.

......Yeah, I'll be careful."

When Jin dared to reveal his own experience and warned her about it, Rubina nodded her head in agreement.

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

After the meal break, the meeting started again.

"Hey, Jin-sama, I was just wondering which part is the main part of the operation with the magic resin (magirezin)?

Rubina spoke up first.

"Which part, ......?"

"If it is fixed to the skeleton, like muscles, it would be clear. But it's not, is it?"

"Oh, I see."

Jin was impressed by Rubina's point of view.

"Yes, that's true. <, it should have the same characteristics."

In other words, it is the < that exerts the most power. How much the other parts contribute to the movement ...... is unclear.

"That's an interesting point of view."

Jin praised Rubina and decided to follow the line.