Another soul had wandered into his forge, and yet Marzan's conviction did not falter for even a moment. Despite the bombardment of requests he was subject to, one after another, each new request as unique and complex as the one making it, it made the smith happy his works were held in such a high regard. But he only made the vessel for the capacity for Humanity's souls, and the boundless potential contained within. When this latest figure came in specifically interested in swords, his forte, the poor smith almost wept. Of course neither the situation nor his reaction were that emotional, however after fire pokers and polearms and stakes and medicinal needles, to hear the word sword was a welcome change.
"If it's a sword you're looking for, you can have more than a peek."
At that moment Emiya chirped in, taking a brief respite from his extracurricular daydreaming fan-fiction battles with his alternate personalities. You know. Healthy people stuff.
"Take it from me, you will never find a better sword, in this land or any other. He's the genuine article."
With a thumb Emiya gestured to Tsumukari, set gracefully upon a table before him, inviting Musashi to inspect it if she wished, or held any doubts. Marzan scoffed, but held his tongue from denying that his work was second to none. In this day and age at least, and certainly for those who called Humanity their allies, it was all they could ever hope for and more.
"That one's a special case, but if you ever find yourself unable to meaningfully harm your opponent as they possess a form of Divine Authority or Divinity, that is to say a 'God', you'' have no better tool at your disposal."

The first gentleman spoke, and when the second one chimed in, in response, it seemed Musashi that the first individual was the Smith and the second, perhaps, his apprentice? Musashi's soul sensing detected an immense complexity to both individuals, but almost something...ancient, from the Smith.
"?" said Musashi, as she walked over to the sword placed on a table, that the red haired man motioned to. She lifted the blade in her hands, and felt its immaculate craftsmanship by its sheer presence. Musashi strove to push her swordsmanship to the pinnacle, to be able to strike at the heart of the void beyond heaven with her skill...but this sword...might be able to do it alone. It was of similar craftsmanship to her father's blade...perhaps, even, superior.
It was a hushed whisper when she said it, strangely solemn for the normally cheerful Musashi, but a hushed whisper escaped her lips. "You didn't..forge the Shining Blade of Heaven, did you?" It was more a question to herself, as she knew her father frequented trips to a "land far beyond the horizon, across the sea", and perhaps, this is where his legendary blade came from. Musashi doubted that either of the two men heard her question, but she quickly returned to her normal self, and posed a question, a bit confused by the claim, but not doubting it after holding Tsumukari in her hands; she placed the blade gently back to its resting place.
"Divinity? You say cut a god, and usually that's a claim I hear from a lot of blacksmiths, but I get the feeling that isn't a boast...but fact? You...make weapons to fight Gods? I often feel graced by the good favor of a god or two, but you're talking about something different, aren't you? I can't deny the quality of that blade at all, and I can feel the skill that went into everything in this room..." Musashi thought back to the creature she fought in the mines beneath the Land of Iron, and strange regeneration; she definitely knew of ways to harm them, though they definitely might be something people were "unable to meaningfully harm", but she wouldn't call it...divine.
"Ehehehe," Musashi laughed, as she rubbed the back of her head, "but, swords like this might be a bit outside of my budget," Musashi said, winking and sticking her tongue out.
"I'm sorry to bother you," she said, bowing, "unless you're willing to give a discount?"