The Demon Lord Xie Xun and the Immortal Venerable Lu Jingyuan once cultivated together for three years at Kunlun Ruins. They fell for each other in secret, but were forced to turn against one another because immortals and demons could never coexist. To protect Xie Xun from punishment by the Celestial Court, Lu Jingyuan imprisoned him on the Immortal-Slaying Platform under the pretense of “suppressing the demon,” publicly claiming he would strip Xie Xun of his demonic core. In truth, he secretly shielded him from three Celestial Court orders to eradicate demons.