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
Paul K. Ryu Paul K. Ryu Paul K. Ryu (also known as Ryu Kichyun and Ki-chʻŏn Yu) was the ninth president of Seoul National University and the sixth dean of Seoul National University School of Law. Prior to his appointment as Seoul National University president, Ryu was Dean of the Office of Academic Affairs. As a founder of Seoul National University Law School, Ryu served as Acting Dean and director of the Law Research Institute. During his tenure as Dean, the Judicial Graduate School was established to directly connect the legal education at SNU School of Law and the education for the members