Dark Kingdom
In early 2014, Mashimo began working regularly for All Japan Pro Wrestling (AJPW) as a member of Kenso's Dark Kingdom stable. However, on August 30, Mashimo turned on Kenso and his stable. On May 21, 2017, Mashimo won his first title in AJPW, when he and Kai defeated Bodyguard and Zeus for the World Tag Team Championship. They lost the title back to Bodyguard and Zeus on June 11.