Leaving Uzumaki Kushina's resentment aside, on the other side, after breakfast, Tamura Hiroshi was taken by Kusayama Ichiro to the forge behind the estate.
Though it was called a forge, it was far from small. It was fifty meters long and wide, with a huge furnace standing in the center.
"Starting today, you'll follow me in the mornings to learn forging and tempering. In the afternoons, you'll study how to recognize and distinguish various ores and metals, along with the different smelting and casting methods."
After lighting the huge furnace, Kusayama Ichiro took out a massive iron hammer. Judging by its weight, it was definitely over a hundred jin.
It suited Kusayama Ichiro's burly build fairly well. With chakra reinforcing his strength, he truly was beyond what an ordinary person could compare with.
He first heated a roughly smelted iron ingot until it glowed red, then placed it on the anvil and swung the heavy hammer down.
"Clang!"
The dull sound rang out. When the hammer rose, it brought the iron ingot upright with it. Then the second blow came down, landing on a different surface.
Thus, he swung the hammer again and again while constantly shifting the ingot's point of impact, ensuring that every surface was tempered instead of simply beating one side into a sheet of iron.
Tamura Hiroshi watched carefully from the side. He also used the power of Princess Kaguya's Sharingan and Byakugan for meticulous observation, while activating the Golden Finger's boosted comprehension to quickly grasp the principles involved.
At the same time, he confirmed that his guess from the previous day had been correct. Kusayama Ichiro's swordsmanship was indeed connected to his hammer-forging. He had incorporated hammer techniques into his swordsmanship, which was why every swing was so forceful and heavy, like swinging a hammer.