
[Part 2] Who is the Oshu "Maikusa Blacksmith"? What was their influence on the development of the Japanese sword?.
Why did the Maikusa sword have such a sharp edge? Are ancient swords a lost technology that cannot be reproduced? We have seen the legends surrounding the Maikusa sword's excellent sharpness, but why did it acquire such high cutting power?.








![What day is it today? Tohoku Edition [1005]](https://jp.neft.asia/wp-content/uploads/2026/02/1005-600x420.png)


![What day is it today? Tohoku Edition [0921]](https://jp.neft.asia/wp-content/uploads/2026/03/0921-600x420.png)
