Masaaki Mochizuki
Iwasa began a rivalry with Masaaki Mochizuki after swearing revenge on him for causing the end of Tozawa-juku. They faced off in a second round match in the King of Gate Tournament in December, where Mochizuki had promised that he would show Iwasa's one "fundamental flaw." Mochizuki won, and afterwards, he told Iwasa that his "fundamental flaw" was that he had been a tag team wrestler for so long that he had forgotten how to wrestle on his own, and would have to re-learn how.