In early 2017, Daniels began feuding with Bullet Club, turning face in the process. On January 14, 2017, Daniels defeated Jay Briscoe in the finals of the Decade of Excellence tournament to become the number one contender for the ROH World Championship at the 15th Anniversary Show. On February 11, Kazarian turned on Daniels, joined Bullet Club and disbanded The Addiction. On March 10 at ROH's 15th Anniversary Show, Daniels defeated Adam Cole with help from Frankie Kazarian, whose heel turn was actually a ruse to dupe Cole, to become ROH World Champion for the first time. The victory made Daniels the fourth Triple Crown Champion in ROH. On April 1, at Supercard of Honor XI Daniels defeated Dalton Castle for the ROH World Championship, after the match Daniels was attacked by Cody. On May 10 at ROH/NJPW War of the Worlds Daniels retained the ROH World Championship against Jay Lethal and Cody. On June 23 at Best in the World, he lost the title to Cody.