Kōwa Seki is a traditional Japanese technique used in the art of sword-making, particularly for crafting high-quality blades. This method emphasizes the importance of using specific types of steel, known as tamahagane, which is produced from iron sand. The process involves folding and hammering the steel multiple times to create a strong and resilient blade. The Kōwa Seki style is associated with the Seki City region, renowned for its sword-making history. Artisans in this area have honed their skills over centuries, producing swords that are not only functional but also beautiful. The craftsmanship reflects a deep cultural heritage and dedication to the art of sword-making.