"Well, should I give it a try before Gran is there?"

　I've been busy making things with Gran for days, and I think it's a lot more complicated than what I've learned yet, but I actually wanted to try something.

　I came up with it when I saw the hard-fang sword that Gran made.

　A hard-fang sword is a straight sword made from the fangs of a large wild boar.

　Even in the state of being just a fang, it has the hardness to easily penetrate human beings when combined with the destructive power of the charge that is unleashed from a giant boar rampaging.

　The fangs have the characteristic of increasing their hardness by being changed into a sword shape and pouring more magical power into it.

　However, it is a mysterious substance that still has considerable hardness even without passing mana through it.

　To be honest, I'm not sure what kind of principle is used to do that.

　However, what is certain is that the special effect of [Strengthen] is exerted by the effect of the material of large boar fangs and the catalyst of valkyrie horns.

　If so, is it possible to exert its effect on other things?

　After Gran was gone after I asked him to build a dwelling, I went to the furnace alone to try this idea.

　I have a material in my hand.

　My idea was very simple.

　It was about making the bricks I'm making, harder.

　I arrived in front of the furnace and lined up the ingredients.

　A heat-resistant brick that I made magically.

　Clay made by magic.

　Large boar fangs.

　Valkyrie's horn.

　Mana Recovery Medicine.

　At first, the heat-resistant brick is easily crushed by hitting it with the hammer used in blacksmithing.

　This is the knowledge I have heard in my previous life.

　In order to make heat-resistant bricks from clay, there must have been a production method of crushing heat-resistant bricks and mixing them with clay.

　It is difficult to make heat-resistant bricks from ordinary plain clay, but if there is a material called heat-resistant bricks, it is easy to make by mixing them.

　With that as a reference, I'm trying to make my own bricks by mixing finely crushed bricks with clay and baking them in a furnace.

　But, of course, I don't want to actually bake bricks that can be made by magic.

　Here I mix in other things to realize my idea.

　Along with the crushed bricks, the finely crushed fangs and horns were mixed with the clay, and the clay was mixed with a liquid Mana Recovery agent.

　For the time being, let's divide the amount of each material into about 10 ratios and knead them.

　The clay made in this way was packed in a mold and baked in a furnace.

　I repeated this many times.

　Most of the baked products were unsuccessful works that crumbled when touched.

　Perhaps I wasn't used to the brick-making process itself.

　However, I gradually became accustomed to the production work, and gradually adjusted the blending ratio while baking the clay.

　Then, after baking countless bricks, the desired product was finally completed.

　* * *

"Kachikachiyazo"

　The bricks I made were horribly hard.

　The color is different from the reddish-brown bricks that had been made by magic until then, probably because the fangs and horns were mixed.

　It is a little whitish or milky white, but the black pattern is spreading instead of all white.

　The surface is so smooth that you can't think of it as a brick.

　I get the impression that it is more like marble than brick.

　This newly made brick will be called a Hardened Brick for the time being.

　I hit this hardened brick with a hammer that has been swung up countless times in the previous work.

　Gakin.

　Such a sound was generated by the impact of a brick and a hammer.

　If it was a brick made before, it would definitely have been crushed.

　However, the Hardened Brick was not even slightly scratched on the surface even after being hit by the hammer.

"Wow ..."

　It was more than I expected that such a thing would be completed just by using materials and catalysts.

　Even if you have the technological capabilities from my previous life, you may not be able to make such a brick.

　Somehow, I developed a tremendous thing and my heart was filled with a tremendous sense of fulfillment.

　I feel that I can understand the feeling that Gran got which made him devoted to manufacturing now.

　But what I wanted to do didn't end here.

　Developing Hardened Bricks may be the first step in itself.

　What I want to do is not to develop hardened bricks, but to magically create hardened bricks.

　I think magic is awesome.

　I think tha the most amazing thing about it is that it is activated by completely ignoring the scientific knowledge I know.

　Like making bricks from plain soil, it is possible to make glass or white porcelain from the same material.

　There was the inconvenience of not being able to make metal-based materials with hardness higher than that of habitual soil, stones, and rocks.

　But what about this Hardened Brick?

　Isn't it possible for me to make a brick that is as hard as metal and has a hardness higher than that of a normal brick?

　I always thought so.

　However, no matter how hard the bricks were in my head, I couldn't create anything more magically  than before.

　Probably, I think that my knowledge and common sense interfered with the image, saying, "There can be no such thing."

　That's why I really wanted to make it.

　Brick with metal-like hardness in this world.

　I lifted the Hardened Brick with both of my hands and sent mana into it from my body.

　What I'm going to do is the same as I've done before.

　I wrap the actual Hardened Brick with my mana with such focus that even a micro-sized detail is not removed.

　After spending a lot of time soaking the brick in Mana until I was satisfied, I cast the [Memory Preservation] spell.

[Hardened Brick Generation]

　Then, while remembering the hardened bricks, I chanted [Hardened Bricks Generation].

　The experiment was successful.

　Instead of the reddish-brown bricks that had been made with the spell "Brick Generation" until then, bricks with tremendous hardness that looked like marble appeared in front of me with the activation of magic.

TLN: Is this the moment when he will start making a castle, I wonder? 😀

Discord: https://discord.gg/SbjDybWruj