DOUKI

Tatsuya Hayama (葉山 達也) is a Japanese professional wrestler, better known by the ring name DOUKI, where he currently works for New Japan Pro-Wrestling (NJPW) as a freelancer. He also appeared for Michinoku Pro Wrestling (Michipro) and Kaientai Dojo (K-Dojo), where he was member of Magatsuki.

He was trained by Jorge Rivera and Ultimo Dragon at Toryumon Mexico and made his debut in December 2008, working in the Mexican independent circuit most notably for International Wrestling Revolution Group (IWRG) and International Wrestling League (IWL), before returning to Japan in 2015, working for Kaientai Dojo. In Mexico, Douki formed a team named Los Japoneses del Mal with Daisuke Hanaoka as a homage to Los Perros del Mal stable.

Professional wrestling career
Hayama was born in Japan, he moved to Naucalpan, Mexico in 2008 with 17 years old to become a professional wrestler. He would be trained by fellow Japanese compatriot Ultimo Dragon and Jorge Rivera in Toryumon Gym, learning the Mexican Lucha Libre style of wrestling. In December, Hayama made his professional wrestling debut under the ring name Tatsuya teaming with Negro Navarro in a winning effort against Mazada and Nosawa. As part of a working relationship between Toryumon Mexico and International Wrestling Revolution Group (IWRG), working for the promotion until 2018. Hayama also worked extensively in the Mexican independent circuit forming a team with Daisuke Hanaoka named Los Japoneses del Mal as a homage to Los Perros del Mal stable.