Katana Black Wave Maru Blade Kuronami Koshirae 黒浪 Saya The overall presentation is luxurious

The overall presentation is luxurious yet balanced—ideal for mounting as part of a complete koshirae

while polishing reveals a natural and flowing Gonome-Midare hamon (互目乱刃文) formed through traditional clay tempering (覆土焼入れ)

the Ume ni Shukuchō Sukashi Tsuba captures the essence of harmony between nature and craftsmanship — a timeless expression of serenity and renewal

Materials: Modern high-carbon steel (kōtanso gendai-kō / 高炭素現代鋼)

Katana Black Wave Maru Blade Kuronami Koshirae 黒浪 Saya The overall presentation is luxuriousClay Tempered Full Tang Shinken () Black Wave Katana: TangGu () Maru Blade () + TangGu () Kuronami Koshirae () This katana is hand forged (Tezukuri ) from high carbon modern steel () in the Maru zukuri () construction style. The blade is clay tempered (yaki ire ) to produce a gunome hamon (). The koshirae features a mokko gata tsuba () forged from tetsu (, iron) with a blackened finish () and an openwork ocean wave motif (). The fuchi kashira () are