It’s not knowledge I often get to use, but I have a shodan in Iaido, the Japanese art of the drawing of the sword. I practised Musoshinden Ryu in a budoukan on the quiet side of Kagoshima city, Japan. It is a precise and very frustrating martial art to learn: one learns first how to tie the hakama, or plaited trousers, then one learns how to tie the obi so that the sword hilt sits almost horizontal, right at the navel for quick draw. Then one learns to sit, for hours, in seiza – folded knees. Then meditation, a bow to the sword on the floor in front of you.
But Kiai: Resonance gets right, aha, to the point. It’s a samurai duelling game about one hit kills. One hit kills were the speciality of the samurai in the Kagoshima region, where I studied.