Kengo Mashimo
On November 20, 2008, Miyawaki made his debut for Osaka Pro Wrestling as the masked character Orochi. He initially joined the "rudo" army, but in 2010 turned on the group and joined a new stable named Joker, as a member of which he went on to become a two-time Osaka Pro Wrestling Tag Team Champion and a one-time Osaka Pro Wrestling Owarai and Independent World Junior Heavyweight Champion. In April 2013, Orochi, along with Joker stablemates Hayata, Hideyoshi, Kuuga and Masamune left Osaka Pro to join Kuuga's new Doutonbori Entertainment System promotion. In June, during the promotion's inaugural event, Miyawaki revealed that he had wrestled under the Orochi mask and made all subsequent appearances for the promotion unmasked and under his original ring name. On June 22, 2014, Miyawaki defeated Saburo Inematsu to win Kaientai Dojo's top singles title, the Strongest-K Championship, after Inematsu legitimately dislocated his left shoulder and was unable to continue the match. Initially, Miyawaki refused the title, but the Kaientai Dojo commission recognized him as the official champion on June 25. He lost the title to Kengo Mashimo in his second defense on August 24.