Open the Dream Gate Championship
On April 14, 2011, Mochizuki defeated Masato Yoshino to win the Open the Dream Gate Championship for the second time. On April 24 Mochizuki agreed to form a new alliance with former World-1 members Masato Yoshino, BxB Hulk, PAC and Susumu Yokosuka to battle the promotion's new top heel stable, Blood Warriors. On June 8, the new group was named Junction Three (JIII) in reference to it being a union between the former members of World-1, Kamikaze and the Veteran-gun. And Mochizuki led their team to winning all four Titles on June 19 in Champion Gate. At the end of 2011, Masaaki Mochizuki shared the Fighting Spirit award with Yuji Nagata from New Japan. After a ten-month rivalry, Blood Warriors defeated Junction Three in a fourteen-man elimination tag team match on February 9, 2012, forcing JIII to disband. After forming the Kaettekita Veteran-gun stable with some of Dragon Gate's veterans, Mochizuki and stablemate Don Fujii defeated Shingo Takagi and Yamato on September 23, 2012, to win the Open the Twin Gate Championship for the second time. On September 9, Masaaki Mochizuki took part in the Nagata's 20th anniversary, they defeat Kazuchika Okada, Shinsuke Nakamura and Yujiro Takahashi in the main event with Nagata and Jun Akiyama. From November 20 to December 1, Masaaki Mochizuki once again travelled to New Japan Pro-Wrestling. He and Nagata took part in the round-robin portion of the 2012 World Tag League, finishing with a record of four wins and two losses, narrowly missing advancing to the semifinals of the tournament.