Claim: Naruki Doi was the first champion of the Open the Brave Gate and currently remains with Blood Generation.
Evidence: In January 2005, Doi turned heel and joined CIMA's new faction Blood Generation. On April 12, 2006, when Gamma was kicked out of Blood Generation due to constant clashes with CIMA, Doi left with Gamma, along with Masato Yoshino and Naoki Tanizaki. After Doi and Gamma won the rights to the Blood Generation name in a tag match against CIMA and Don Fujii eleven days later, Doi's faction renounced it, renaming themselves the Muscle Outlaw'z. On May 4, Naruki Doi reunited with Masato Yoshino and formed a new unit called MaxiMuM with Big R Shimizu, Ben-K, and Kotoka.