Elsa's mini-car was completed before nightfall, and she happily drove it around until it was dark.

And after dinner.

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

"Brother Jin, are you troubled again?"

Erza heard Jin groaning as he came out of the bath and looked into his face worriedly.

"Yes, during the day, I realized the danger..."

"Danger?"

"A car accident."

He had noticed it when he saw Reinhardt's car start off too fast.

Even in modern Japan, there have been accidents, especially in automatic transmission cars, where the gas pedal and brake pedal have been misplaced.

In this ars world, the roads are narrow and there are no traffic laws at all. It was easy to imagine that the sudden introduction of automobiles would cause many accidents that would result in bodily injury.

Too rapid a change also brings danger.

We do not want to bring traffic wars into this world.

"...... sure."

"Right?"

With that, Jin began to worry again. And now Elsa began to think about it with him.

"...... not how to reduce the number of accidents, but why they happen."

Elsa made a different suggestion.

"I see."

Jin, who had never thought of that idea, decided to change his mind.

"After all, you are going too fast, aren't you?

There have been many accidents in which the driver would have reacted in time or the damage would have been minimized if he had not been going too fast. The same goes for slipping on wet roads.

"...... I think we can manage that if we put some restrictions on it."

Jin refutes Elsa's words.

"But that would mean giving up the advantages of the car.

Speed of movement is an important factor in modern society.

So, we decided to put the question of speed on hold and consider other causes.

"Is it still an operational error?"

"Yes. As long as humans are driving, mistakes are bound to happen. ......　The driver!"

A luxury car has a driver. A carriage has a driver.

Jin thought it would be a good idea to set up a golem driver.

A driving school to make people proficient in driving is still not very practical.

"......Yeah, that's a good idea."

Elsa agreed. Jin then asked the old man for his opinion.

I understand your point of view. Even cars are going to be expensive, and you add a golem driver to the mix to make it even more expensive.

"Master, why don't you reconsider what you want to popularize them for in the first place?"

"I think it would be a good idea to consider it from various angles.

I turned around at the voice and saw two blue-haired automata, Lol and Anne, standing there.

The two were not of the Jin lineage, so the old man had summoned them in the hope that they might have a different point of view.

<<> and Lefa join them anyway>>, and so Kun Kun was invited.

<<, who was in charge of the Kunlun Island, would be in charge of the manacam, and Lefa would be in charge of the transfer gate. Refa came to Horai Island by warp gate.

"You're overreacting.

He seems to be enjoying the situation.

"I don't want to cause any accidents. I want to ...... at least have fewer accidents than the number of accidents that are happening now with horse-drawn carriages."

Jin can never allow his parents or family members to be killed in car accidents.

"Then we need to restrict the use of the car in the city."

Leffa immediately responded.

"The rapid spread of this technology will cause friction, my lord.

This is Taishaku. Jin chewed on his opinion.

"That's true. If the wagons suddenly disappeared, the master would lose his job, and the distribution of horses would be affected.

"Yes, I suppose so. I think that a speed of about 15 kilometers per hour would be sufficient in the city.

"Brother Jin, bumpers, right? We should also pay attention to those materials.

What Elsa suggested is also done in modern cars of the earth.

Jin remembers that the Director told him that until around the mid-Showa period, chrome-plated metal bumpers (with their shiny chrome) were used, but that they were replaced by plastic and rubber bumpers.

However, this is not necessarily true. There were aerodynamic and design reasons, and laws and regulations were different between Japan and the West.

However, from a safety point of view, bumpers made of shock-absorbing materials were not bad.

I think it would be a good idea to control it with a magic brain in the near future.

This is a typical opinion of Taishiro.

"Then I guess we'll have to rethink the supply of the Golem engine. ......"

"Brother Jin, that can't be helped. You're in too much of a hurry to begin with."

Acting on one's own initiative can cause unexpected accidents. We should be glad that we were able to prevent it from happening this time.

Then we need to rethink about automobiles.

"What is the reason why you are making a car, Master (My Lord)?

Jin was a little at a loss for words when Taishaku asked him. Originally, there is no clear reason for his desire to make a car.

And now that he has made it, he wants to use it. And now that he has made it, he wants to use it, and he wants to go to Mitsuho with pride.

To do so, the technology must be generalized or it will be conspicuous.

This is roughly how the process was going in Jin's mind.

The old man first offered his opinion.

<?

"That's good, but what about after that?　Will they want the same thing?"

As for Jin, it is difficult for him to respond to such a request.

>

"Yes. Though it is only about 10% as good as the original."

"Goshujin-sama, I think that's the way to go, don't you?"

This time, Anne gave her opinion.

"If the Golem engine that you have created, Mr. Goshujin, could be made more efficient..."

"Indeed.

Jin began to think that it might be a good idea to make the engine less powerful and use gears to slow it down.

(It was a hard work at that time, and I had to do it ____.

(I had a hard time that time. ...... Reiko was angry with me.)

Jin recalls the hard work he put into making the gears.

"I think that's a good idea. It's like a toy at first."

Elsa agreed.

"The metal found underground, <>?　Since it is very similar to bronze, I suggest that the master's items be made of orichalcone and the gift be made of bronze.

This is Lor. Since the strength is different, the force that can be produced will naturally be different by an order of magnitude.

"Then, why don't we make it so that we need a full-time golem driver?

Refa also expressed his opinion.

"That's the way to go."

Although we have deviated from our original policy of popularizing automobiles, as Taishaku said, rapid changes will cause conflicts.

It is better to take time to spread the use of automobiles.

"First, let's see how it goes..."

Reiko looks at Jin, who seems a little discouraged, and says something comforting.

"Your father has done a lot in a short period of time in this world. No one else can imitate him. It is the same with this car. I don't think there is any need to rush any further."

"I see. I guess so. Thank you, Reiko.

Jin patted Reiko on the head and thanked her. Reiko looked extremely happy.

Thus, the plan to popularize the car was once again formulated.

In reality, things may not always go as planned, but it is still better than no plan at all.

The first objective is to use the car to go to Mitsuho with Erza and her friends, and the dissemination of the car is the second objective and below.

The car we made this time will be used only in Horai Island.

"Okay, let's make the popularized version tomorrow.

It was late at night when the plan was roughly decided.