Manganese Steel Japanese Straight Sword with Blue Lightning Blade and Dragon Engravings

The blade on this straight sword is forged from manganese steel and finished in a deep blue tone that runs cleanly from the base to the tip. Hand-etched white lightning streaks travel along the flat of the blade, creating a layered visual texture that shifts with the light. Near the base, a gold dragon engraving stands out against the blue, adding an element of East Asian artistry directly onto the steel. At 41 inches overall, the full-tang construction gives the piece a balanced, substantial feel whether it is mounted on a stand or displayed flat.

The tsuka is wrapped in black cord over black PU samegawa in a traditional diamond pattern, with gold menuki accents visible between the wraps. The handle delivers both a classic aesthetic and a firm grip profile consistent with koshirae-style construction. The fit between handle and blade is tight, reflecting the handmade craftsmanship applied throughout.

The alloy tsuba is one of the most detailed components on this piece. Cast in a gold-and-silver two-tone finish, it features layered scroll and floral relief work extending outward from a rectangular body. The ornate design frames the blade cleanly and serves as a strong visual anchor between the dark handle and the blue steel. If you are exploring other designs in this finish range, the Blue Sword collection covers a wide selection of blue-blade pieces built to a similar standard.

The black hardwood lacquered saya is finished with a glossy surface and features white dragon engravings along the upper section, mirroring the dragon motif on the blade. Two cream-toned accent bands wrap the saya at evenly spaced intervals, breaking up the black and adding a graphic contrast element that ties visually to the handle hardware. The sageo cord is black, keeping the overall color palette consistent.

At 4 lbs and packaged in a 43 x 4 x 4 inch box, this replica is built for display rather than modification. The koshirae-style fittings, full-tang manganese steel blade, and layered dragon artwork make it a cohesive collector piece. For related options with similar blue-tone blade aesthetics, the Blue Demon Slayer Sword collection offers additional styles worth browsing.