IWGP Junior Heavyweight Championship
On October 7, 2013, Ibushi, along with Naoki Sugabayashi and Sanshiro Takagi, representatives of both DDT and New Japan, held a press conference to announce that he had signed a dual contract with both promotions; three years with DDT and one year with New Japan, making him the first wrestler to have such a contract and officially have two home promotions. Ibushi wrestled his first match under a New Japan contract on October 14 at King of Pro-Wrestling, where he, Togi Makabe and Tomoaki Honma were defeated in a six-man tag team match by Bullet Club (Prince Devitt, Bad Luck Fale and Karl Anderson). Returning to the junior heavyweight division, Ibushi then began chasing Devitt for the IWGP Junior Heavyweight Championship. On January 4, 2014, at Wrestle Kingdom 8 in Tokyo Dome, Ibushi defeated Devitt to win the IWGP Junior Heavyweight Championship for the third time. Ibushi made his first successful title defense against El Desperado on February 11 at The New Beginning in Osaka. On March 6, Ibushi main evented New Japan's 42nd anniversary event, losing to Kazuchika Okada in the annual non-title match between the IWGP Junior Heavyweight and IWGP Heavyweight champions. On April 3, Ibushi made his second successful defense of the IWGP Junior Heavyweight Championship against Nick Jackson. Three days later at Invasion Attack 2014, Ibushi and El Desperado unsuccessfully challenged Nick and his brother Matt, The Young Bucks, for the IWGP Junior Heavyweight Tag Team Championship. Ibushi's third defense of the IWGP Junior Heavyweight Championship took place on May 3 at Wrestling Dontaku 2014, where he defeated Ryusuke Taguchi. On May 25 at Back to the Yokohama Arena, Ibushi unsuccessfully challenged Tomohiro Ishii for the NEVER Openweight Championship. On June 21 at Dominion 6.21, Ibushi successfully defended the IWGP Junior Heavyweight Championship against the winner of the 2014 Best of the Super Juniors, Ricochet. On July 4, Ibushi lost the title to Kushida in his fifth defense. During the match, Ibushi suffered a concussion, which forced him to pull out of the 2014 G1 Climax.