June 20, Midsummer's Day.

The town of Koju, Shoro. The town is located close to the capital, Leusat, and has a well-developed water transportation system with a moat that draws water from Lake Tosmo.

Because of its advantageous location, the town has been under development in recent years and is expected to become a satellite city of Leusert in the near future.

A multi-purpose facility built on the newly opened port. There are large buildings and squares.

In the largest of these buildings, the Central Pavilion and the adjacent East Pavilion, a technology exposition was being held for the 10th time this year.

...... is pleased to welcome so many participants and visitors on this auspicious day, the 10th Technology Expo is being held here.

In the main hall of the Central Pavilion, the opening of the exhibition was announced by the Empress Gerhard Hilde von Rubies-Shawlo.

Then, the advisor of the exhibition, Mr. Degas Furth von Manischlus, Minister of Magic and Technology, gave a speech, and Christoph Balde von Tharnat, Undersecretary of the Ministry of Magic and Technology, who is a member of the executive committee, introduced the attendees.

"Ah, he was a witness at Reinhardt's wedding."

Jin, who was in the last row of participants, remembers seeing Christoph's face.

The participants were introduced, and some of them left the hall. They were probably preparing or washing their hands.

Jin quietly slipped out of the hall. I am not good at long ceremonies. There was something more important to prepare for.

"Father, do you want me to plug this in?"

"Yes, yes. Make sure it's securely connected.

With the help of Reiko and Steward, Jin assembled the magic tool. The magic tool looked like a small compressor.

"Jin, what is that?"

Reinhardt also left the room and came to Jin's side.

"Haha, it's a secret for now. You can look forward to it, can't you?　I'm going to knock the socks off everyone who comes.

It was unusual for Jin, who usually hates to show off, to say such a thing. Reinhardt looked at Jin with a surprised face.

"......Yeah, I'm looking forward to it."

With that for now, Reinhardt went to check his exhibit.

Except for the special items that Jin was currently assembling, the rest of the exhibits had already been brought in the day before and were already on display. All that remained was to check the exhibits and open the venue.

Needless to say, Erza, who is treated as Jin's assistant, had already submitted her exhibit in advance.

The stewards would take care of the completed magic tools. Lily, a member of the Secret Service (SP), is temporarily in charge of watching over the carriage.

It is now almost noon.

The doors are scheduled to open at noon. Jin took Reiko to the cafeteria to have lunch while he could.

There, from 10:00 to 3:00, participants could eat whatever they wanted for free.

Jin takes his seat and tells the waiter what he wants to order. Reinhardt and Saki are nowhere to be seen, either because they are taking time to prepare or because they have already finished their meal.

No,

"Hey, Jin. There you are."

Saki had just arrived.

"Oh, Saki, are you finished?"

"Yeah, we've done everything we can. Yes, I've done everything I need to do.

Saki took her place at the same table and placed her order. Then another voice called out to her.

"Hello, Mr. Jin.

"Oh, it's been a while."

"It's been a long time, how have you been?　How have you been?

It was Stearina, a magecraftsman from the Kingdom of Celluloa. Saki, who had never met him before, was surprised.

Jin, who are you?

"Ah, this is Stearina Gamma, a magecraftsman from the Kingdom of Celuloa.

When Jin introduced her, Stearina chuckled and corrected him.

"Oh, it's not Gamma now. It's Beta. Stearina Beta."

The number one technician in the Kingdom of Celluloid was Donald Callow Alpha, number two of the Unifilers, but he disappeared when the Unifilers were destroyed, so he was moved up and became Beta.

"So you became a beta, congratulations.

"Thank you. I'm not so happy about ......, though, because you were moved up, not because of your ability.

Stearina smiled bitterly, "There is no joy in being moved up due to a mere vacancy.

"This is Saki. This is Saki Eschenbach. I am an alchemist.

Nice to meet you, Saki.

Nice to meet you too.

Stearina looked busy,

"Well, I look forward to seeing you this afternoon.

And then she left.

Afternoon. It was time for each participant to make a presentation.

Each participant was assigned a booth, but as if that were not enough, there was time for demonstrations on a special stage.

Huge magic projection windows (magic screens) were set up in various places in the hall so that the presentations could be seen clearly even at a distance from the stage. Of course, the sound was also delivered to every corner of the hall by loudspeakers.

Only about 30% of the participating magicians (magecraftsmen) were allowed to make presentations on this stage. Those who have no achievements are not allowed to go up on the stage.

Of course, Jin was included in the 30% who could make a presentation. And since he was from outside of Japan, the earlier time slot was reserved for him.

* * * * * * * * * * *

Just before noon. The doors finally opened.

Jin was at his booth.

"Well, my presentation is the third one. You take care of this in the meantime.

"Yes, I'll take care of it.

Edgar nodded. I'm only bringing Edgar as one of Elsa's works.

"...... is the end of my presentation."

On stage, the first presentation had just finished.

"Okay, I'm off.

Reiko took the luggage for the presentation, and Jin left the booth.

The second presenter was Stearina.

"I am Magecraftsman of the Kingdom of Celuloa, Stearina Beta.

The appearance of the beautiful Magi Craftsman was greeted with a round of applause.

"This is Serene, my crystal golem.

There were loud cheers when the golem introduced appeared on the stage.

It was a golem made of bluish crystal. It was even more perfect than the we had seen in the Kingdom of Egelea.

"Hmmm, that blue doesn't look like crystal, does it?"

Jin, who was watching from the side of the stage, secretly checked the material with Analyze magic.

"Wow, blue topaz," he said.

Topaz is a mineral with even higher hardness than quartz. It is rare and expensive, especially yellow topaz, which is called imperial topaz.

There are also colorless, pink, brown, and blue topaz.

Serene was a golem made of blue topaz.

Her movements are smooth, and she seems to be more sophisticated than the former Ceres.

She also sings. Its singing voice is also better than that of Ceres.

"But I still think it's easy to crack ......."

Jin was worried about the situation as the audience applauded.

Third, it was finally Jin's turn.

Reiko holds the box for him and he goes on stage.

"I am Jin Nido, Honorary Magical Craftsman of the Kingdom of Egelea.

When he greeted Jin Nido, there was a round of applause. Jin Nido's name is becoming well known.

"This is what I am going to show you today.

Jin opened the cover of the tray Reiko had given him. There were 10 golems, each 10 centimeters tall, lined up in a row.

?"

His reaction is not good. From a distance, they look like mere dolls. But when Jin gives them a command, their lack of reaction is replaced by surprise.

"Smith, show me how it works!"

"Yes, master."

The miniature craftsman Smith responds to Jin's command in a high-pitched voice, walks away, and begins to climb up Reiko's body.

Arms, shoulders, and heads...people are astonished to see ten miniature golems.

Anyone with a little knowledge of magecraft understands how out of the ordinary a golem the size of 10 centimeters is. And not only that, it is autonomous and even vocal.

And even those who were not familiar with magecraft gazed at it as if lost in thought at the sight of something they had never seen before.

Jin further explained.

This mini golem is called a mini craftsman (smith). In other words, it can be used as an assistant for magecraft. What kind of use can it be used for? Seeing is believing, so let's have a look.

Jin then handed a small piece of brass he had prepared to the miniature craftsmen (smiths).

"Our hands and eyes are too rough when it comes to precision work. On the other hand, they are ......."

As Jin said this, the mini-craftsmen (smiths) used their engineering magic all at once. A special magic circle appears for a moment, and the piece of brass in their hands changes shape.

It became a precisely engraved medal. After having the same medal made three more times, Jin ordered Reiko and a mini-craftsman (Smith) to make a total of 40 medals and distribute them to the audience.

Reiko walked around among the audience with a tray in her hand. On the tray, the mini-craftsmen (Smith) hand out the medals to the audience.

When they run out of medals, the mini-craftsmen (smiths) process brass pieces again and hand them out again.

With this demonstration, all the spectators in the audience got to see the mini-golem up close and personal, and were impressed by its processing capabilities.