At the same time that Jin was working in Horai Island, there was a commotion in Shogun.

Meanwhile, Reinhardt was on his way back to the Shoro Kingdom as planned.

A company was assigned to guard him. The commander is Captain Matheus Geist von Rialger. He is the commander of the 3rd Company of the Kingsguard.

He was Reinhardt's friend and the brother of Reinhardt's fiancée.

"I didn't know Matheus was here."

Reinhardt was now on his way home, protected by the troops led by Matheus.

"Yes, his majesty also asked me to protect you."

His Majesty?

Yes. Rumors of your Black Knight (Schwarzlitter) have reached the kingdom. You won the battle golem simulation in the capital of the Kingdom of Selroa!　I heard that he defeated the Adamas Warrior.

It was about a year ago, but it sounded like a story from the distant past to Reinhardt.

"And you won second place in the golem boat competition in the Kingdom of Elias, didn't you?

Matheus continues to talk with his horse following closely beside the carriage. He is quite dexterous.

"Yes, well. It's a pity we didn't win."

"Of what?　It's not my field, and to come in second place out of the gate is quite a feat.

Reinhard recalls how he first met Jin at that competition. We have spent many intense days together since then.

"...... Speaking of which, where is your cousin?"

The voice of Matheus broke my reverie. By cousin, I mean Elsa.

"Elsa, huh? I can't ...... tell you that. Ask Fritz.

"Major Fritz, huh? I'm not very good with him."

Reinhardt knows that his friend has been concerned about Erza since she was a little girl. But now he already has a wife.

"Fritz ......"

Now that Jin has told me everything, I can't help but wonder if Fritz might be under the influence of a seduce.

But there was no way to be sure.

Today's stay is in the provincial town of Tansten.

* * * *

Jin received a report from the old man.

>

Two sealed boxes of Gigarth were found on this day. Now there are only three left.

"Hmmm ......"

<

"...... got it."

Jin gets up and goes to the workshop. Reiko follows silently.

"War is not a good thing. I know that. But I think someone once said that there is as much justice as there are people, so there must be as much national justice as there are countries. ......

Jin thought as he walked.

"I'm not a hero or a brave man. Not even a warrior. I am a Magecraft Meister."

Then he remembered what Licia, the new noble girl of the Kingdom of Klein, had asked him before.

"<>"

She said so.

And that was how Jin was feeling right now.

"Father, where are you going?"

Reiko stopped him as he was walking past the workshop, thinking.

"Oh, ah... I'm sorry."

Scratching his head, Jin returns. Reiko looked at him with concern, but said nothing.

"Well, today we're going to develop a new weapon.

Jin said as soon as he entered the workshop.

"Last time, Reinhardt and Stearina were fitted with , and after analyzing it, I came up with a lot of interesting ideas.

Can you tell us about them?

"Of course. First of all, that collar had the effect of blocking the concentration of magic power.

Jin's worries were now gone and he was getting more and more heated.

"When using magic, there is the existence of chanting as <>. It is completed with a small amount of magical power as a <>.

If the trigger can be composed without chanting, magic can be invoked without chanting, but we will leave that aside for now.

"The function of the collar was to diffuse the small amount of magic power needed to trigger the trigger.

Gasoline, for example, is the match that ignites the magic. It is a function to blow it out.

"If you do this on a large scale, you can create a field where magic cannot be activated.

Jin concluded.

"That's great, father."

Reiko was honestly impressed.

"And the other is the function to reduce the wearer's physical strength. If this were done on a large scale, it could stun an entire army.

These are also effective weapons, and if both of them are perfected, they could stop the war, if only temporarily.

"Excellent, father. Let's develop them immediately."

Reiko was saying this when Anne came in.

"Goshujin-sama, I heard about you through the old man. Something similar to it once existed."

"What?"

According to Anne, in the early days of the War of Magic, there was a kind of magic that blocked magic.

"But it wasn't very effective because it made it impossible for allies to use magic as well.

It is said that there were many cases in which it was disadvantageous for us to be unable to use magic against a demon tribe that had superior power.

"Well, in this case, since it's just a magic power jamming to activate, I think Reiko and the golems can move without any problems, don't you?"

Jin questioned Anne thoughtfully.

"Yes, it's only a , so it won't affect the golem, which is powered by internal magic. It just can't use external magic.

Reiko also has her own means of magical attack, though she often fights with her power these days. But with Reiko's strength, that shouldn't be a problem.

"It works against magic troops. And you know how to do it?

Yes, I remember.

So first, based on Anne's memory, I made a prototype of the Magijammer. Since Anne was present, it was completed easily.

Jin added his own innovations and improvements in various places.

"The efficiency is more than doubled with your method, isn't it?

was a line from Ann who was present at the test.

Jin then went on to develop a weapon that would .

"Why don't we just expand the function of the collar?

"But that would require too much magic power.

"Hmmm, I see. Oh, then, we could do it this way: ......"

"Father, I think it would be faster to review the magic control flow (magi sequence) from the beginning.

"That's true."

Jin, Reiko, and Anne. The three of us will discuss this. Jin's inspiration, Reiko's verification, and Anne's consideration from another angle.

With a model and a clear goal in mind, they had a rough idea of the structure before noon.

"Father, it's not good for your health to be so occupied. It's just noon, let's go to Erza and the others.

Reiko said and dragged Jin out of the sea of prototypes.

"Goshujin-sama, please go and have your lunch. I'll make the prototypes in the meantime.

At Anne's words as well, Jin turned his head and jumped to the Kunlun Island.

"Welcome, Brother Jin!

It was sunny on the Kunlun Island today. So lunch was served outside.

Erza, who had always been a dexterous cook, has improved a lot in simple cooking.

After leaving the magecraft, Jin was eating bread again, thinking a little. Erza noticed him.

"Jin, are you eating while thinking about something?

Jin looks at Erza. Since Erza had spotted me, I explained briefly about the current situation on the continent.

"War ......"

Erza turns a little pale, and Jin explains what he thinks is a reassuring explanation.

"Ah, but fortunately, the Shoro Kingdom is not in the midst of war. Reinhardt also told me last night that he was returning home under the protection of a unit commanded by a captain named Matheus."

"Mateus?"

Erza looked nostalgic for a moment when she heard that name.

"Oh. You know him?"

"Mateus is a friend of my brother Rai, my fiancée's brother."

"Heh. So when Reinhardt gets married, he'll be the brother-in-law of this Matheus guy?

Yes. If Matheus is with him, Rai's brother will be safe.

Erza said this and Jin felt a little relieved. Not exactly,

"Hey, what do you think about the war that has just started?

Jin asked her.

Erza immediately replies.

I hate war.

Then she continues.

"...... brother Fritz was once a prisoner of war. I was so worried about him."

This was when Fritz was still a gentle older brother.

When Jin heard Erza's words, he wondered if Fritz might be under the influence of a seduce, and oddly enough, he had the same imagination as Reinhard.

"My father was a soldier. I heard he made his career in the war. But I hate war. I'd be better off without it."

Meine, who was listening beside me, looked a little pained, perhaps remembering the time when she was pregnant with Erza.

"Okay. I'm sorry for asking such a strange question.

Jin bowed his head lightly.