KAIENTAI-DOJO
Kodaka was trained in professional wrestling by Taka Michinoku at his Kaientai Dojo promotion's training school. Kodaka, using only his given name as his ring name, made his professional wrestling debut for the promotion on July 18, 2002, facing Daisuke Matsumoto. Kodaka left Kaientai Dojo shortly afterwards to become a freelancer.