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Vermilion Thread Katana
The Vermilion Thread Katana carries its vermilion finish through the saya and tsuka, with a red-finished patterned blade extending the colour story into the steel. A bo-hi provides the clearest structural line across the blade.
Alloy fittings keep the mount simple enough for the red system to remain coherent. Its place in the collection comes from the colour carried across the whole koshirae rather than from a named decorative subject.













Materials & Craftsmanship
We choose the right steel for each katana—nothing more, nothing less |
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One continuous piece of steel, from blade to handle |
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Through-hardened or clay-tempered, years of experience get it just right |

Hand-Fitted Koshirae
Shaped to follow the katana’s curve, with a secure fit for a smooth draw without slipping loose |
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For centuries, the tsuba has reflected its owner’s taste—and is often the first detail to catch the eye |
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A comfortable shape, a tight wrap—the first step to bringing out a katana’s true power is a firm grip |
