Published: January 13, 2026
The carefree lord’s book version Volume 2 and the comic adaptation Volume 1 are now on sale!
Each has original side stories!
Be sure to check them out!
Havel said he wanted to forge in a calm environment, so instead of the adventurers’ town, we decided to build the blacksmith workshop on the outskirts of Seato Village. As for Rango, it seems he took some merchant apprentices to Kusala’s inn to pitch furniture sales. Since I allowed them to purchase on credit, there shouldn’t be any shortage of money.
Meanwhile, when he heard we were going to build a furnace, Havel immediately started listing the necessary materials.
“Silica stone, niter, red clay, and magic stones from demonic beasts that are resistant to flame. Those are crystals that form in minuscule amounts inside their hearts. It’ll cost quite a bit, but these materials are absolutely essential.”
“We’ve got them.”
“You do!? Whoa! You’ve got a huge amount of the magic stones, which are supposed to be the hardest to get...!?”
Havel gasped in astonishment as he looked over the materials. I had already told the Bell Rango Trading Company to prepare for the blacksmith, so the materials for making the furnace were all gathered. If there was any problem, it would be that since we planned to build the furnace outside the adventurers’ town, transporting the materials might be a hassle.
Other dwarves had come along too, looking around Seato Village with curiosity.
“All these buildings are ones we’ve never seen before.”
“The town over there was the same, but we can’t tell what materials they’re made of.”
While the dwarves chatted like that, Havel surveyed the outskirts of Seato Village, the intended location, and began solidifying the image of the furnace.
“If we’re melting orichalcum, we need a big furnace. A tall one. There are two ridiculously huge towers over there, and if it’s that size, it’d be even bigger than the largest furnace in the Dwarf Kingdom. But building something like that would take ten or twenty years. For now, let’s build a smelting furnace about three meters tall for iron ore.”
Havel said that and started sketching a rough blueprint on the ground. Watching him, I spoke up.
“Havel-san, can I ask you something?”
“Hmm? What is it… Oh, right. I decided that here, I’ll forge armor and weapons that surpass those made by Lord Van. In a way, I’m becoming a villager under his rule, so you can stop using honorifics with me.”
He scratched himself vigorously for some reason while saying that, and I laughed as I nodded.
“Alright then, to be clear. Is the reason the big furnace takes so long to build because there aren’t enough materials?”
When I asked, Havel waved a hand and started modifying the diagram he’d drawn on the ground. He drew something like a chimney and pointed to its upper and lower parts.
“No, it’s not that. It’s simply that you alternate placing the highest-grade blue coal and ore material inside here, but for the furnace’s temperature not to drop below 2500 degrees Celsius at the bottom, orichalcum won’t soften. Iron only needs 2000 degrees, and for mithril, the important factor isn’t the temperature but where you extract it from inside the furnace. Orichalcum’s different. Temperature is first, then pressure. That’s why you need a tall furnace. But because of that, you have to carefully adjust things like wall thickness and balance while building it.”
As he explained, Havel finished drawing the diagram on the ground and folded his arms, humming thoughtfully. The drawing was surprisingly good, looking just like a real blueprint.
There was a cross-sectional side view and a circular hole at what seemed to be the chimney’s tip. The bottom was rounded and expanded, designed so molten metal would pool in the hottest part. Also, something like a straw was inserted from the side, probably to add something from the outside. There was also a hole at the bottom leading outside the furnace.
“This is where the heat treatment and molten metal extraction happen. These small bars here are air holes. You have to constantly add crushed coal and air through them. Next to it, you place wind delivery boxes designed with no gaps, and if you keep stepping on them from left and right, wind gets pushed into the furnace. You can have up to four wind delivery boxes, but two can still work somehow.”