"I noticed something when I looked at the topography of the area from the sky.
He laid out the photographs on the table in his office and began to explain.
"Something you noticed?"
"Yes. ...... See, you can see that the Shama Marsh contains a vast amount of water, can't you?"
Yes, that's right.
Where do you think that water comes from?
"What ......?"
Licia looked at the picture Jin had spread out and pointed to a spot.
"Well, isn't it, uh, around here?"
This was where the Naud River flowed into the marshland.
"I'm not wrong, but that's not the main part."
Jin smiled and shook his head.
"Is that so?"
"Yes. I'm going to have to do some research later, but most of the water in the Shama Marsh is subterranean water."
"You mean the water that flows underground ......?"
Jin nodded.
"I think that is correct. So ...... where does this underground water come from?"
Licia twisted her head.
"That would be my guess, but I think it comes from the surrounding mountains."
There are a series of mountains to the east and north of the Great Shama Marsh.
In the mountains to the east, moist winds from the sea to the east of the former Leonard's Kingdom form clouds and cause rain to fall.
The mountains to the north are not the ones just north of Toka village, but the high mountains to the north of Kaina village.
Those mountains are capped by glaciers, and the mountains just south of them also receive a lot of precipitation. Not all of that water makes it into the Ermee River."
"Oh, I can sort of see that."
"Yes. So, there is definitely underground water in the village of Kaina. I've checked it out."
It is this underground water that gives rise to the hot springs.
"It's a huge amount of water, so I don't think it's surprising that it flows deep underground into the Shama Marsh."
"...... I'm starting to get the idea."
Licia's face brightened a little, perhaps because she was beginning to understand what Jin was trying to say.
"So you are saying that there is underground water in Toka Village?
Jin nodded.
"That's what I mean. But we can't say for sure until we check it out, and we don't know how much water we can take out.
Too much water will affect the environment, of course.
"Still, I have a glimmer of hope."
"Okay, let's check it out right away."
Jin said and was about to go outside when he suddenly remembered.
"Oh, by the way, ......"
In the world 400 years later, he had made a magical tool for <>.
"I guess we can also make a grimoire for detecting water veins and hot springs," he said.
Jin remembers searching for hot springs in Reinhardt's territory.
Jin runs outside and heads for , which is parked on the outskirts of the village.
He then uses the repair materials on board to build a magical tool for "water vein exploration".
In addition,
(It might be a good idea to be able to search for hot springs, ores, magicrystals, etc., by using a switchable system.
).
"Ah, um, Mr. Jin?"
Licia looked doubtful as she chased after Jin, who had jumped into when he thought he had gone outside.
"Licia-sama, your father is making a magical tool to find the water vein.
"What?
Licia was surprised at Reiko's explanation.
But she quickly convinces herself that it is Jin's work.
Jin emerges from with a large flashlight-shaped magical tool in his hand. He was quick because he had once (400 years later) made a similar tool.
"So you can find the water vein with it?"
"Yes, it does. If you point this at the ground and turn it on, the magi crystal here will glow green if there is a water vein. Then, if you turn on the switch over here, the approximate depth is displayed on this super-small magic screen.
The depth of the discovered water vein is measured using <. Jin estimated the margin of error to be plus or minus 10 meters.
"Wow, that's great."
"Well, let's give it a try."
First, he tried using it at the highest elevation north of Toka village.
If there is a water source here, it will be easy to supply.
"Let's start it up. ...... Oh, there it is."
"There it is!"
Both Jin and Licia were delighted because they had not expected to find it in one shot.
"The depth is ......250 meters. That's pretty deep.
Jin thought that it might be one of the deepest water veins, but he decided to give it a try and dig.
"Reiko, I'll dig the hole, you apply dissolute to the hole.
"Yes, sir. I'll leave it to you.
"Okay, here we go. ......!
Dissolve!
Using Dig and Dissolve with even more skill than they had with Reinhardt, Jin and Reiko were able to dig their way to the water vein in two minutes.
"It's here!"
"What? Already?"
A hole 20 centimeters in diameter. Licia looked into it.
"Now let's see what the groundwater level is around here. ...... hmm?"
"Kyah!"
Suddenly, water gushed out of the hole.
Jin and Reiko were fine, but Licia, who was peering into the hole, was directly hit and soaked to the skin.
"Ugh, ...... it's so cold."
"You'd better change quickly...... or this will be quicker. "
Engineering magic is basically ineffective on living creatures, so only wet clothes could be dried without affecting Licia herself. If this was , the water contained in it would become hot and could cause burns.
"Oh, thank God!"
Licia breathes a sigh of relief as she dries off.
"Oh, but the water came up, didn't it?"
"Yes. It was lucky that the water seemed to be under pressure and gushed out on its own. It saved us the trouble of installing a pump.
Jin said and hurriedly dug the reservoir.
"Well, that's good."
The reservoir was about the size of a 25-meter swimming pool. It was about two meters deep.
"Reiko, let's work in groups to secure the sides of the reservoir.
Yes, Father.
The bottom of the reservoir will be left untouched, but the sides will be lightly hardened to prevent it from collapsing.
"Also, build a fence to prevent children from falling in. ......
"Oh, we'll take care of that.
Licia felt uncomfortable leaving everything in his hands.
"Okay. Now we just need to make sure the water doesn't overflow.
We would have to build an outlet and a sluice gate to manage it.
"Yes, we will do that too.
It will take a couple of days for the water to fill up, so we will be ready in the meantime.
"Thank you very much, Mr. Jin. This will improve the water situation in Toka Village.
"Yes, good luck."
When water is abundant, we can grow many kinds of crops. It was thought that rice production would be possible.
After this year, Toka Village's food self-sufficiency rate exceeded 100 percent.