後藤洋央紀
Hirooki Goto vacated the NWA International Junior Heavyweight Championship on September 7, 2007, when he graduated to the heavyweight division. On November 9, 2008 in Osaka, Japan Super Delfin defeated Último Dragón in a decision match to revive title. In July 2015, Delfin announced he was forming a new promotion named Kaisen Puroresu.