Japanese communities seek advice from them as "dougi" characters, referring to the traditional martial arts gi typically worn by shoto people. Wherever Ryu has a far more "electrical" affinity, Ken's private enhancement with the type presents him an affinity to fire, most apparent in his hefty Shoryuken among other moves. https://whiskeyeditions.com/product/hibiki-japanese-harmony-ryusui-hyakka-limited-edition-2021/