GHC Heavyweight Championship
On September 9, 2006, Naomichi defeated Jun Akiyama for the GHC Heavyweight Championship at the Budokan Hall, utilizing the Perfect Inside Cradle. In doing so, he became the first wrestler to win all five GHC titles in Noah and became the lightest GHC Heavyweight Champion of all time. A little over a month later, Marufuji's successfully defended the title against his tag team partner Kenta on October 29, 2006. The match received critical acclaim and Tokyo Sports named the match the 2006 Match of the Year. On December 10, 2006, Marufuji lost the GHC Heavyweight Championship to Mitsuharu Misawa in his third defense.