JKF Renbukai organization established the All Japan Karatedo Federation (JKF) and made Shūdōkan its overall headquarters. The JKF appointed Choko Sai as chairman, Yasuhiro Konishi (Shindo Jinen-ryu) and Hiroshi Kinjo (Kanbukan) as vice-chairmen, Kanken Toyama and Hiroyasu Tamae (Otou-ryu) as Shihan, and Hironori Otsuka (Wado-ryu), Tatsuo Yamada (Nippon Kenpo Karate), Shinkin Gima (Shotokan-ryu), Isamu Tamotsu (Shorinji-ryu) and Tsuyoshi Chitose (Chito-ryu) as officers of JKF. In 1964, JKF made a new united league of the non-contact karate world with JKA (Shotokan), Wado-ryu , Goju-ryu and Shito-ryu. Old JKF handed over the name of JKF (Japan Karate Federation) to the new league and changed
Ryu Se-ra Ryu released her first solo EP album "SeRen:Ade". On September, 2015, Ryu held her first solo solo concert in Hongdae, for which 600 people attended. In March 2018, Ryu founded a new agency OCTO and announced that she will continue solo activities with her real name, Ryu Se-ra. An agency official has stated that the name OCTO carries a meaning of a new beginning. On March 2, Ryu released a single album "Stay Real", managed and published by her new agency. Later that month, Ryu held a second solo concert titled "Spring Rain" at Olympic Hall Muse Live stage, followed