Rukendō

"When fighting hand to hand, you cannot be as stiff as a rock. You flow like water in a river. When that water is poured into something, it can become that shape or form."

- Shiro Sentako discussing the basis of Rukendō

Rukendō (Literally meaning: Way of the Flowing Fist) is a unique fighting style invented by Shiro Sentako. It is also known as the Adaptive Fist.