So he did exactly as he had said: he taught Yuichiro as much as he could.
In fact, he had several reasons for staying...
For one, Ubuyashiki Kagaya had given him a task. For another, he worried that Demons might be lurking nearby and that Yuichiro might end up following the same old path.
Most importantly, he truly wanted to take in an adopted son.
If Yuichiro really had a talent for this, Tetsu no Sosuke would gladly take him back to Hammer Hut, even if he never learned Swordsmanship.
As for whether Muichiro ultimately chose that path, Tetsu no Sosuke had no intention of interfering.
Come to think of it, having one brother inherit his Swordsmanship and the other his forging skills seemed almost perfect...
But making that happen would probably take a few twists and turns.
For one thing, Yuichiro would never approve of Muichiro learning Swordsmanship. And once Tetsu no Sosuke's identity came to light, there was no telling what the two boys would think of him.
For now, I'll take it one step at a time.
Tetsu no Sosuke had actually finished making the Armor Vest. Over the next few days, he took it apart and put it back together again, explaining its workings to Yuichiro as he went.
Mechanism Arts were a curious thing. Understanding one device did not mean understanding them all, but once Yuichiro grasped the basic idea, learning more would become much easier.
Tetsu no Sosuke used the Armor Vest to give Yuichiro a start.
Muichiro had no interest in it at all. He forced himself to watch for a while, but as Yuichiro followed along eagerly, Muichiro began to snore. Yuichiro finally lost his temper and sent him off to play, bringing a little peace at last.
But when Yuichiro turned