One of the legendary Tenka Goken, this tachi was forged by Miike Tenta Mitsuyo and stands out immediately—the craftsmanship is just different from what other smiths were producing at the time. That quality gap was so striking that people genuinely believed the blade had spiritual properties. There's a real folklore element here: supposedly, leaving it at someone's bedside could actually cure them. Whether that reputation stemmed from the sword's undeniable excellence or something else entirely, the blade earned itself a mystical reputation that stuck around.
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