Five days after the start of the landscaping work, the land was finally evenly spread over as much as 200 m vertical and 500 m horizontal. What, it's too late to have cheats? I used to go hunting and build blocks of brick sized stones.

The blocks of stone are stacked in a cylindrical shape about a metre in diameter just next to the city's planned construction site to make them a simple furnace. From now on, I will have to work with others. What am I going to do,

"Gita, and May and Adelina. I'll give you an important assignment!

I've tried to sound like an army to attract the interest of my two children, but for some reason Adelina is the most exciting, but I shouldn't worry about it.

"The three of you are going to make something called lime. This job is very difficult, but it's very important, so I decided to entrust it to three people I trust!

The truth is that it is not to mention that these three people have no work in the settlements with more people, but it is called Hua.

"Yes, what is it?

May is the one who raised his hand and asked the question, I'm fine.

"Lime extinguishing is an important material that will become a secret weapon in this construction of the city. It's not hard to make, but it's very important, so good luck.

"" Ha!

Brothers and sisters who respond well. Adelina sees that as Nico.

"Now we'll use the simple furnace we made over here to create a lime extinguishing. Until you get used to it, I'll work with you so you can work with confidence and be careful not to get hurt. The task is first to put the seashells that are mountainous there in the cauldron that went inside the furnace. Then add fuel such as firewood from the bottom to light the fire.

This is the important point to make from here ~, the boxes you install beside are tools for every fudge. This is a tool that winds out of the opposite hole when you put in and out the handle next to it. What, you will use this all the time while you are burning the fire.

"Stay, then what happens?

"The wind passes through this tube and into the furnace next door. Then the furnace will have a high temperature of over 1000 degrees, right?

"Are you 1000 degrees so hot? How much?"

"How much... right... the temperature is about 100 degrees that will be enough to ignite the water and produce bubble bubbles. It's 10 times that… it's about this 1000 degrees over that iron turns bright red and soft when you build a weapon. Because of this, iron dissolves about 1200-1500 degrees and the temperature varies depending on its type of iron.

"Yes, Doctor! How did you measure that?

This is Adelina's question. Well, naturally it's a question that comes up.

"That's right, I don't even know the teacher. Knowledge is certainly a good way to explain everything in order, but it doesn't mean you have to know everything. Normal people have no problems to the extent that they can be used safely and correctly.

"I know it's safe, but what does it mean to be right?

I guess Adelina thought it was about the correct operation of knowledge, what to use that knowledge and technology for... a difficult question.

"Can you reproduce this phenomenon exactly as you think it is this time? You're right about what I mean. Incorrect or insufficient will eliminate the reproducibility of who or when the knowledge is in line. In my opinion, this is not enough as knowledge.

"Reproducibility... the same thing happens whenever anyone does it... it does matter, doesn't it?

"Let me also answer the question that Adelina just thought. It is certainly important to use technology correctly. But people's positions and circumstances change something called justice… so there is no such thing as this being right.

With a difficult face, Adelina thinks.

"Just let me tell you if I think it's the right way to use technology and knowledge. Who will be happy? Who do you use it for? Wouldn't someone be sad? You're not gonna be unhappy? And if you come up with an answer, strain your chest that it's right. Stop if you just blame people for someone telling you to, that's the stupidest and most cowardly use of technology. If you're worried enough, delay the execution, and if you're not convinced, you're missing something. This technology also means making things, but it also means fighting skills. Think as long as you live, it will be your treasure… whether you succeed or fail.

"Can I fail?

Three people peeking anxiously into Masaru's face.

"You can fail, it's more important to think about your correctness while failing than to grow without fail. I'm sure."

"I'm sure?

May with her neck is so cute... I think you want kids at times like this.

"I'm sure it's good there. Then I'll work on it ~! We'll light the fire and burn it until the shells are white! Don't touch the furnace because it gets hot - I've been testing it again, but the furnace uses stone, so I don't know what happens with heat. If you think there's a crack in it or something wrong, stop working and get away from the furnace.

"" "Ha!

In this way, the development progresses little by little.