Yun Zhao, the number one martial god in heaven, was infected with the devil's breath during the Battle of Beiyuan. The heavens were afraid of his power and set up a trap to throw him into the abyss of demons. The moment he fell from the Zhuxian Platform, he caught the jade slip thrown by his best friend Shen Qingyuan. There was only one line on it: "Survive. I'll wait for you to come back and ask." Under the abyss, he discovered the truth that had lasted for thousands of years - the distinction between immortals and demons was nothing but a lie. The real darkness is hidden above the Nine Heavens.
