Reincarnation into the Barrier Master

The commander-in-chief approaches me with a smile on his face. He is emitting a very strong killing intent. He is thinking of cutting me down, depending on the situation.

I know what this man is thinking. Even if he kills me, he thinks he can say that a messenger from Agartha died in the battle. And if I come up with a good idea, he will take the credit for it. Such a man cannot command properly. It is obvious that many soldiers will lose their lives for sure.

It is of no concern to me or Agartha what happens to this empire. It is unfortunate that we will no longer have a supplier for our warhorses, but we will just have to find another business partner.

Nevertheless, I had a certain liking for this Holm man. He makes me want to help him somehow. So I decided to take care of the problem.

"I wish you would shut your mouth if you have neither wisdom nor anything else. Wouldn't it be better for us to leave this place as soon as possible?　From now on, 20,000 enemy troops will rush here. It would be better for you to return home quickly before you get hurt."

"No, I said it would be difficult, not that you lack wisdom.

"Well, then, I will accept your offer.

"Mr. Holm, may I ask you a few questions?"

"Uh-huh."

His reply was funny, as if he did not expect me to talk to him at all. I thought he was smiling at me, and I continued to talk to him.

"It seems that there is plenty of water in Karza Castle, isn't there?

Yes, it's good water.

Can you stop that hand of water?

"And ...... stop, what do you mean?"

"So can you stop the water from flowing?"

"What the hell are you talking about?"

The commander-in-chief tries to speak to me, but I stop him with my right hand. As expected, he is quite angry.

"The water for the Karza castle is drawn directly from a spring that boils in the mountain through a channel. And since it is constantly flowing, the only way to stop it is to block the canal. ......"

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"By the way, is the spring close to the Castle of Khaza?"

"No. It is about four kilometers up the road from the castle.

Four kilometers!　Then it must have taken a lot of effort to draw water from the mountain.

No, well, ......

"Don't be modest. All the people who did it are great. It wasn't a half-baked job. No, I understand. I understand.

"Haha ...... haha ......"

Holm is embarrassed. He is blushing and scratching his head. He is not used to receiving compliments, is he?

"I see. Well, that's a good thing. My plan is to stop the water from flowing into Karza Castle.

"If you ...... do that, we won't be able to siege the city!"

"Well, of course. If you say so, then that's exactly what will happen.

"Enough!"

The commander-in-chief shouts loudly. He comes very close to me and pulls me close. It's a very close distance. It's really creepy.

"What have you been saying all this time?　We are busy!　If you're going to interrupt me, I'm going to ask you to leave!"

"Yes, I'll leave if you ask me to, but don't you need to hear my plan?　In the meantime, I'd like to make sure that not a single person in the Imperial Army dies in this operation.

"No need."

"Oh, I see."

"I will inform the King of Agartha directly about you."

"Directly?　You?"

"Yes. As Commander-in-Chief of the Seyfant Imperial Army, I will send a letter of protest directly to the King of Agartha. And of course, to the Emperor of the Heedata Empire.

Shall I take care of it now?

What?

Shit. Now I'm Kensing. This conversation is unnatural. Just as I'm thinking I've messed up, Holm interrupts at the perfect moment.

"Please wait!

"Yes, Holm. You keep your mouth shut."

"I would like to hear your plan, Mr. Kenshin."

"Don't you understand what I just said!　This man is a complete amateur!　What kind of idiot would take such a man's word for it!"

"Kenshin-sama, please continue the story."

"Oh, okay, Mr. Holm. Well, I guess it would be easier if I explained it on a map.

Saying this, I went to the map that was displayed behind the commander-in-chief's seat. The commanders-in-chief followed me, looking stunned.

"The NONO army is probably going to launch a general attack after Elsmo's army arrives. The soldiers of Karza Castle should leave the castle at that time.

"What are you talking about!　You want us to give Karza Castle to the enemy!　You've got to be kidding me!"

"At the same time, the troops who are stationed on the mountain behind the castle, please continue up the mountain. And the troops led by the Commander-in-Chief should also go downstream to ....... And the troops led by the commander-in-chief are to retreat to the point where the tributary of this river joins the river. After that, the troops who climbed up the mountain should turn off the waterway that drains the Karza Castle. As close to the spring as possible.

"And what does ...... mean?"

How many days can 25,000 soldiers live in that castle without water?

Holm's eyes widen. Inarticulate voices are heard from the staff. But the commander-in-chief breaks the silence by raising his voice.

"You idiot!　I knew you were an amateur!　Even if we cut off the waterway, we can still get water from the Jie River that flows right in front of us!　What a ridiculous thing to say!　That's enough!"

"It's called the Jie River, isn't it? This river is called the Jie River, isn't it?

"What?　What?"

"Our concern was that when we shut down this river, we would not be able to supply the empire with water. But, if you look at the map, you can see that there are tributaries flowing into the river here. So, even if we stop the flow of the river around the Karza Castle, there will be no problem. That's what we decided."

"That ...... can't be that big of a deal. ......"

"Oh, I'll take care of that, don't worry. I can use earth magic too. What?　What?"

Escalina stood behind me and spoke to me in a small voice. She said that she would collapse the mountain and fill the river. In short, it was a rather wild plan, using the force of water to cause a landslide and dam up the river.

"......I'm sure it will work out that way in many ways."

Sadie also mutters in a small voice. Well, we'll think about that later.

"But, but. But what about the rising water level when you stop the flow of the river!　The river will soon overflow and return to its original state!"

"We will build a high wall to prevent that from happening. This is a mountain at such a high elevation. It can hold a lot of water. Well, it will collapse if we don't train it properly, so we have to concentrate on that point, though we have to work a little harder.

"I don't believe such nonsense. Don't be delusional!

"Yo."

I put my palm to the ground. The earth rises from the stony ground, creating a cylinder as tall as I am. I smelt it to give it hardness.

I can do something like this.

Everyone is open-mouthed. It takes a lot of magic power to dig up soil from this stony ground. It seems that even they understand that.

"I see...that's a good idea!

Holm clapped his hands and nodded.

"I'm sure Kenshin-dono will build a solid wall. If we can cut off the water completely, 20,000 soldiers will be out of action in three days.

"......Wait!　If that happens, it is inevitable that they will attack us with deadly force. In that case ......"

"In that case, the other unit should just hit the enemy's backside."

"Ugh. ......"

"The most likely scenario is an attack on the commander-in-chief's unit. If the enemy makes such a move, it is important to attack without delay. Please maintain close communication and coordination.

"Then I will return to the castle immediately and make arrangements to withdraw everyone."

"Yes, please do. You will do that, all of you, okay?

At my words, the staff members slowly bowed their heads, looking dazed.