Former special forces soldier An Feng becomes the mysterious assassin known by the codename "War Demon" after his comrade is tortured and murdered by criminal forces. He slips into the city's shadows, targeting only the wicked. His martial arts are strange and formidable, yet he never harms the innocent. But while seeking revenge, he discovers a vast conspiracy behind his targets that threatens the city's safety. From pursuing revenge to actively protecting others, An Feng wears darkness as his cloak and wields martial arts as his blade, walking the line between good and evil. As he investigates the truth behind his comrade's death, he also works in secret to dismantle the criminal forces' conspiracy. This lone battle to protect the city will ultimately bear the name War Demon, sweeping away the city's gloom and restoring peace to the world.
