David Haradyn Sensei began Yoshinkan Aikido at the Seikokan in 2006. In addition to regular Aikido training, Haradyn Sensei graduated from Seikokan Kenshu 12 month course (intensive study of weapons techniques, teaching methods and philosophy). Haradyn Sensei was promoted to Nidan (2nd degree black belt) in May 2012. He currently assists the Adult classes and Youth Aikido classes.