Dick Togo
Trained by Dick Togo, Sasaki made his professional wrestling debut on October 22, 2005, facing Yuki Sato at a Super Crew event, which was promoted by Togo and mainly featured his trainees facing each other in matches. In early 2006, Sasaki took part in Kaientai Dojo's 2006 K-Metal League, where he won two of his five matches and failed to advance to the finals. In June 2006, Sasaki left for a year-long learning excursion to Mexico, during which he wrestled for promotions such Alianza Universal de Lucha Libre (AULL), Consejo Mundial de Lucha Libre (CMLL) and International Wrestling Revolution Group (IWRG).