On the day the demonic world descended upon the land, Dang Se-woon—known as the most vicious divine craftsman under heaven and called the Demon Craftsman—met his death. As a legendary divine craftsman whose reputation as “the most malevolent in the world” preceded him, Dang Se-woon’s demise marks a pivotal moment at the dawn of a new demonic era. The story appears to follow the events surrounding his death and the chaos that unfolds in Sichuan province as the martial world transforms under the arrival of demonic forces.