"Fire God Kagutsuchi above! The implements used in a blacksmith's forge are, first, a charcoal furnace, with bellows on the outside. It burns charcoal to make fire—the hotter, the better. Second are iron hammers, at least three, large, medium, and small, needed to beat refined iron over and over. Third is an anvil, in various shapes, which must be solid and heavy. Fourth are tongs, flat-headed, round-headed, and awl-headed, to clamp tight and hold things steady for forging..."
"Fifth is a fire sickle, used to trim and cut iron while it is hot, without the slightest error in the stroke. Sixth are water troughs and oil for coating. Cold water and cold oil are used for quenching—the colder, the better—and after quenching, oil is applied for protection. Seventh are iron files, coarse and fine, for filing and repairing the iron surface. Eighth are molds. Large pieces use molds, mostly for everyday ironware..."
"These eight categories—furnace, hammer, anvil, tongs, sickle, trough, file, and mold—are the working tools of a good craftsman forging iron!..."
Weapons Group Head Otani Kengo lowered his head and sat in the snow, drawing the shapes of different tools one after another with his finger. Then, beside each kind of tool, he wrote a name in Chinese characters. However, he did not know many Chinese characters, and if he had to explain in more detail, he could only write phonetic kana.
The warrior monk Watanabe Masumi also lowered his head, writing Otani Kengo's account into line after line of explanation. Exploration Captain Zuwaro, meanwhile, widened his eyes and watched with repeated clicks of wonder. Once the eight kinds of tools had been explained, Zuwaro was beside himself with joy, the corners of his mouth lifting high! He generously took out a Gold Amulet, personally put it on Otani