"Is it true we're expanding Vulcania, kid?
"Oh, yeah, old man. Barca Castle now has an inner wall district, a castle town between the inner and outer walls, and a ranch district to the north. I'm going to expand that even further."
"Hmm. Well, there's talk of accepting giants who are warriors of Atmos. Maybe we should expand it."
I see. And there were too many people in Vulcania. I made a plot of land where people lived when I was in the village. The decisive problem lies in the structure of this city. "
"... it's garbage and sewage disposal"
"That's right. I would like to develop the city while expanding, if possible. Not only extend the walls, but watch out for the ground."
Hmm. That's fine, but using Balkan magic is just the surface, right? I think it'll take some time to get the sewers up and running. "
"No, I'll do it. I have a good idea."
I've thought about building a theater in Vulcania, but I think I'll build more cities at best.
As it stands, Vulcania is a rectangle of land surrounded by four kilometres of outer walls on one side and a ranch area of the same size bordering the north and south.
I'm thinking about doubling this.
In other words, the plan is to have a square-shaped city with four compartments surrounded by four kilometers of square walls.
This is to absorb the growing number of inhabitants, but also to accommodate Atmos warriors, as the old man said.
When you accept a group of people who use a language that is different from the language we use, there is nothing you can say if you can blend in with us without any problems.
But perhaps there will be various clashes.
Even though the words are different, the Atmos warriors have the strength of the current class.
Sometimes it heats up and develops into a murder, such as drinking and having a quarrel.
Perhaps it would be better for each other to keep a certain separation between the places we accept.
Furthermore, in addition to the problem of acceptance of Atmos warriors, he was concerned about sewage treatment.
Originally, it was a pioneering land that only opened up the land to make food for Valkyrie, and then it was surrounded by a wall with a big pig countermeasure, and then it was used as a city as the center of my territory.
For this reason, the city function is very poor.
I think it would be a good opportunity to eliminate it.
"No, what are you going to do, kid? A new neighborhood where the boy magically digs a hole and makes a sewer? But if we're going to do it anyway, why don't we build sewers under the Vulcanian lands we have now?
I see. So I'll put it all together. "
"Hmm? What do you mean, I'm putting it together? What are you thinking, kid?
"Recently, I realized that Vulcania can do interesting things. Add city features with Atmosphere."
"... what? Using Atmosphere? You see that big black rock?
"That's right. That's the equivalent of a labyrinth nucleus. Inside the Atmosphere is a vast amount of magic, but it seems to have spread across Vulcanian lands. Use it."
"Eh... can you do that? The labyrinth nucleus is..."
"Tanatos, it seems that Atmos warriors could only be used to strengthen themselves and learn magic. But I was able to use the magic of Atmosphere to improve the land. It's already been tested. Let's make a plan for what city we're going to be in."
In addition to the old man, he summoned his father, Hector's brother, Kyle, Maddok, and others.
Then, we will examine the new urban structure.
The Castle of Barca and its suburbs will be located to the south-east of four large sections.
On its northeast side is the ranch area, and to the east of the two compartments are forest reserves to secure timber as managed land.
In addition, the northwest of the new large block will be developed as the Atmos district, and the southwest will be the new city.
I plan to install a blast furnace in the new city.
This is not a furnace to train iron, but a garbage disposal and baking area.
Until now, the burial of the dead has not been decided properly, but I think it will be decided in order to reduce the risk as well as expand the city.
Sewerage will also be maintained.
Basically, there are domestic water [drinking water] and [washing] by domestic magic, so there was no large amount of contaminated water.
But as the population grows, so will it.
It is said that if dust accumulates, it becomes a mountain, and there will be various effects from dirty water.
I also have a toilet problem.
It is more important to serve than to eat food.
We will make those rough blueprints and determine further details at the planning stage.
And with the plan and the city blueprints, I got Atmosphere.
The atomosphere of a large rock over 300 meters tall is, in a sense, a super skyscraper.
The big building was full of magic, and the magic was soaked from the ground adjacent to Atmosphere into Vulcania.
I'll use that magic.
Previously, when I relocated Atmosphere from Atmosphere to Vulcania, I was able to use the magic contained in Atmosphere, so there was no problem.
Touch Atmosphere and manipulate the magic inside with an image that further penetrates into Vulcania.
And crush.
The walls of Atmos.
At the next moment, the walls grow from the southwest corner of the Vulcanian outer wall one after the other, not where I am touching Atmosphere at the center of Vulcania.
Somehow, I feel strange.
Despite the obvious invisibility of the area, the shape of the land is magically fully understood.
Even the "Atmos Wall" continued to clash, creating walls in the new city and Atmos district.
So far, the outer wall was a wall made of [wall architecture] with a height of 10 m, so all the outer walls were then converted with [Atmos wall] with a height of 50 m.
But after that, a little more careful work was waiting.
Now we're going to build a sewer that will spread underground in all four big blocks.
I probably wouldn't have done this without Atmosphere.
For some reason, my magic started with the surface part, and when I tried to build a building vaguely without thinking about anything, it had the characteristic that the amount of magic consumed increased in proportion to the size of the volume.
And it was the same underground at the same time.
If I use magic to build a sewer underground, my magic consumption will increase depending on the depth from the surface.
The amount of magic I have alone can break my bones by making such a wide range of sewage facilities deep underground.
But with Atmosphere's magic, I was able to replace that magic consumption.
Prior to this expansion, vertical holes had already been made to the basement.
A perpendicular hole drilled underground with a manhole lid.
They further create similar holes, creating a sewer that leads horizontally underground.
At this time, pay attention to the slope so that the water flows well.
Incidentally, this sewer connects to a water borehole outside the newly constructed wall.
Normally, if you pour contaminated water into the water borehole, it will smell unbearable.
However, the problem was solved by using a slime.
We planted dedicated grass to allow slime to live in the water borehole.
This is because if there was a slime in the dam, the water was obviously clean.
In addition to the dirt and sand stored in the dam, the slime also cleans the dirt.
I tried to use the slime for sewage.
If you accidentally fall into a water moat, it will be catastrophic, but there is also a side to strengthening your defense, so please forgive me.
It may have been good to have had the experience of building a city called Dressina before in this sewer project.
I redeveloped the place where Kawakita Castle was located and turned it into a city, but at that time I also built sewage facilities.
The experience lived.
By magically remembering the sewer in Dressina and using it in the Vulcania expansion plan, we were able to create a decent sewer that would not cause so much trouble.
Thus, in the summer of the third year of the Gallows calendar, Vulcania was reborn into an even bigger city.