Miyamoto made two appearances in Ring of Honor. On July 23, he defeated Shawn Daivari and on July 24 he wrestled in a six man match with Trent Acid winning. Overall gain much experience as he had experienced wrestling in many different promotions and even won the River City Wrestling Heavyweight Championship in 2005. During the summer of 2005, Miyamoto would return to All Japan. On July 15, 2005 he wrestled Akira Raijin in his return match, winning in less than four minutes to show his growth. His return to All Japan would not last long, however, as on November 22, 2005 it was announced that Miyamoto was leaving All Japan for a new promotion called Kings Road. Originally Kings Road was rumored to have Toshiaki Kawada as their ace, but Kawada never appeared for the promotion. Defecting with Miyamoto included All Japan wrestler Shota Takanishi and Genichiro Tenryu. On the main event of the first Kings Road event, Miyamoto main evented against legend Genichiro Tenryu, with Tenryu picking up the victory. Miyamoto continued being the ace of Kings Road, main eventing against Takao Omori on the February event and teaming with Taichi Ishikari against Mitsuya Nagai and Daisuke Ikeda at the April event. By now the promotion was in serious trouble, as Kawada's participation never materialized and they had no wrestlers that were draws as Tenryu had only wrestled on the first event. Their next two events would be held in much smaller venues (with the attendance under 500 for both), and on July 1, 2006 the main event would be a special 5 vs. 5 match against Zero-One Max, with the stipulation being that if Kings Road lost then they would disband. Kings Road would lose the match resulting in Kings Road folding for good. After Kings Road went under, Miyamoto failed to gain entrance back into a major promotion. He had wrestled in New Japan during his Kings Road stint, facing Tanahashi on March 19, 2006, but it did not lead to a permanent position. On January 20, 2007 he appeared in Osaka Pro Wrestling as the secret new member of Bad Force Stable, but he only wrestled on one card and was not seen again. He also wrestled for Riki Choshu's Lock Up Promotion in mid-2007 but he was not invited back. Unable to find steady work, Miyamoto created his own promotion in the fall of