Kohei Sato
Through the continued relationship between Zero1 and Wrestle-1, Suzuki began also making appearances for the latter promotion, where he found himself a rival in Kai. On March 8, 2015, after Kai had captured the Wrestle-1 Championship, Suzuki immediately confronted the new champion and challenged him to a title match. The match took place on April 1 and saw Suzuki defeat Kai in just seven minutes to become the new Wrestle-1 Champion. On May 5, Suzuki put both of his championships on the line at separate Zero1 and Wrestle-1 shows, losing the NWA United National Heavyweight Championship to Kamikaze and retaining the Wrestle-1 Championship against Ryota Hama. On June 27, Suzuki returned to IGF for the first time since his departure from the promotion, first defeating Wang Bin in the opening round and then Daichi Hashimoto in the finals to win the Genome-1 2015 Nagoya tournament. Following the win, Suzuki formed an "anti-IGF" stable with foreigners Erik Hammer, Kevin Kross and Knux. On July 12, Suzuki lost the Wrestle-1 Championship back to Kai in his third defense. On November 1, Suzuki defeated Kohei Sato to win Pro Wrestling Zero1's World Heavyweight Championship. On February 26, 2016, Suzuki returned to IGF, when he was appointed the leader of a new stable named Hagure IGF Gundan ("Rogue IGF Corps"), which also included Kazuyuki Fujita, Kendo Kashin and Shogun Okamoto. On March 27, Suzuki lost the World Heavyweight Championship to Kohei Sato.