Jin decided to listen to Reiko's report while relaxing in the hot spring.

"First of all, I greeted Mr. Tomax who welcomed me and presented <> to him. She was so happy that she shed tears."

"...... I wonder if he's having a hard time."

Jin feels very small because he is aware that part of that hardship is his fault.

"At ......?"

"<> is going to start on September 5, so after your father's alter ego doll (doppelganger) and my main body settled down in the visitor's room, <>"Well, I will do that.

"Well, I suppose they would."

Jin nodded, because he himself would have done so in that case.

"And there was still Mr. Berlich Becker there.

"What is he doing?

Jin wonders if his workshop is okay.

"I was kind of in a good mood with Mr. Katjea.

"Oh, ......."

Jin understands the feeling, but he asks himself for the second time if the workshop is good.

"It seems that you have been staying here since the second lecture of the <>.

Jin asked for the third time if it was really okay.

"I got along well with Mr. Groma as we discussed various opinions about golems, and I became interested in Ms. Cachea. He seems to think that the workshop will be fine as long as Mr. Ludwig is around.

Indeed, Ludwig seemed to be serious, so he should be fine, Jin smiled.

"I heard that he is now treated like a visiting member of the <>," he said.

"I wonder if Ludwig will eventually leave the workshop to him and take up residence in <>. ......

"That's a possibility."

"Seriously ......, I'd better get out of here."

Jin decided to go up, as he was getting a little tipsy from the long hot bath.

It was still hot in September on Horai Island.

Jin drank some cold citran juice after taking a bath.

"Well, is Elsa back?"

Jin gets dressed and heads for home.

"Oh, she's home."

When he enters the front door, he smells the delicious smell of miso soup.

"I'm home. ......Erza is home, too?

"Welcome home. ...... about half an hour ago. Did you go to ...... bath?"

"Yeah. When I came back from Saki's, Erza hadn't left yet, so I took a bath.

"...... I see."

Elsa looked a little disappointed.

It is true that if she came back about 30 minutes ago, she was not more than 10 minutes ahead of Jin. They must have been right in the middle of each other.

"I'm sorry. After dinner, you want to take a bath with me?"

"............"

Erza, who had been tasting the miso soup, nodded, her cheeks reddening.

* * * *

That evening.

"Ladies and gentlemen, I'd like to unveil our new golem!"

Stearina announced the in front of the whole family.

"Oh!

"It's beautiful!"

"This is beautiful!

"What's its name?

Someone asked, "What is its name?

someone asked.

"I named it Lime."

"Lime. "Lime... it's the right color."

The lime is a green Ramon (lemon in Ars) like fruit that Jin discovered in the Ramon archipelago long ago and named it because of its resemblance to the lime of Earth. It also grows wild on the continent of Rasil.

"Lime, say hello to everyone!"

"Yes, Mr. Stearina. My name is Lime. I am Lime and I look forward to making your acquaintance.

Lime bowed with a graceful gesture, and everyone in the room applauded.

The others in the room applauded.

Jin and Elsa are sitting on the porch, looking at the stars. Mini Reiko reads the air and stays in the next room.

"Today, Marcia, Stearina, and Saki showed us their research and results. Everyone is having fun and doing what they love."

It is the image that Adriana Barbora Zetsi, the previous , dreamed of.

Jin spoke to Erza in a quiet voice.

"Saki was doing this kind of research today..."

"Hmm?"

Jin explained Saki's research in brief to Elsa.

"......There are certainly a number of mysteries in biomaterials and engineering magic that we have yet to solve.

Elsa also seems to be interested in these mysteries.

"...... aren't bio-based materials alive?"

"Well, it's hard to say. For example, human hair and nails can work engineering magic if they are cut, but not if they are not, right?　Why is this?"

Jin asked, trying to get the opinion of Erza, an expert in healing magic and the world's top healer.

"Is it because of the magic inherent in the living body?"

"No, I don't think so."

"What?　What? Why?

Jin had thought that the living body had its own unique magic pattern and therefore magic with other people's magic pattern would not work while it was connected to the body, so Erza's words came as a surprise to him.

"Then I should be able to exert engineering magic on my own hair. But I can't actually do it."

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

Jin realized what Erza had said. Even if it was his own, engineering magic could not work on his hair, skin, nails, etc. when it was attached to his body. That is a fact.

"That's just like Elsa. That was indeed a blind spot."

Jin honestly admitted that his hypothesis was wrong.

"Then why doesn't engineering magic work on living organisms?

Back to square one again, Jin was at a loss.

"...... this is my hypothesis."

Elsa prefaced her explanation with this.

"I think that engineering magic is a very subtle magic.

"Subtle?"

"Subtle? ...... I mean, it's delicate, and even a little noise can't make it work, in that sense, it's subtle."

"I see. ......

Jin, who is literally the best in the world at engineering magic, immediately understood what Erza meant.

"But that may explain why engineering magic doesn't work on living bodies, but it doesn't explain why it doesn't work on parts of your own body, does it?"

Jin countered.

I thought you would say that. You are mistaken."

"Mistaken?"

"Mistaken? The reason engineering magic doesn't work on ...... living organisms isn't because their magic patterns are different.

"What?"

Erza said something that seemed to overturn the conventional wisdom.

"What do you mean?"

Jin was deeply interested in what his beloved wife Elsa was going to say.