Japanese communities consult with them as "dougi" figures, referring to the traditional martial arts gi usually worn by shoto characters. The place Ryu has a far more "electric" affinity, Ken's personalized advancement from the model gives him an affinity to fireside, most evident in his significant Shoryuken among other moves. https://whiskeyeditions.com/product/hibiki-japanese-harmony-ryusui-hyakka-limited-edition-2021/