Genenu

Genunu a friend of Jun, sorcerer & the main antagonist of the (2011 film) The Legends of the Millenium Dragons.

The Film
Genenu was destroying onis in the first scene & saved the village & the samurai warriors. Genenu meets Jun a boy & a savior who can protect people from onis & Genenu takes of him & Raiko. When all onis overrun the village Genenu tells Jun to unlock Orichi the Dragon from the mountains & Jun destroys the onis with a Orichi that he awakens.

Later in the film Genenu rise his Four Heavenly Dragons to destroy all onis but Jun tells that there will be no piece when they start a war. Genenu forms his Four Hevenly Dragons to make him stronger to kill Jun & turned againest his samurais & onis. Jun destroys the mutated Genenu & saved the world from human destruction of mankind for Jun's peaceful life on his own.