Seisan Seisan The karate kata (alternate names Sesan, Seishan, Jusan, Hangetsu) literally means '13'. Some people refer to the kata as '13 Hands', '13 Fists', '13 Techniques', '13 Steps' or even '13 killing positions'. However, these names have no historical basis. Seisan is thought to be one of the oldest kata, being quite spread among other Nahate schools. Shito-ryu has its own version and different versions are now practised even in Shuri-te derivatives like Shotokan (called Hangetsu) and in Wado-ryu (called Seishan). Isshin-ryū also adopted this kata. This kata is also practiced in Korean styles such as Tang Soo Do and
David Ryu David Ryu David Ryu (born 1975) is a Los Angeles City Councilman for Los Angeles City Council District 4. He is the first Korean-American to hold a council seat in Los Angeles, California. He holds a Bachelor of Arts in Economics from UCLA and a Masters of Public Policy & Administration from Rutgers University. Ryu was born in Seoul, South Korea, in 1975, the oldest of three children His father, Eul Chul Ryu, and mother, Michelle Won Chung Ryu, moved the family to Los Angeles, California in 1980, when Ryu was 5 years old. There, Ryu's father served as editor