The Central Plains Dynasty is based on Confucianism and Taoism. Northern barbarians and wild tribes covet the Central Plains. Western Buddhist and witch cults run rampant. The Western Chu Kingdom is restless. Southern borderlands are in chaos, dominated by the Demon Cult. Eastern Sea races contend for power, with the merfolk as kings. Yuan Xian, a Daoist immortal, is in seclusion; the drunken swordsman Li Bai drinks deeply and his sword cries across the land; the national teacher Ji Xiyao cleaves a mountain with a single sword. A Buddha sits serenely on Mount Ling, chanting sutras; a demon saint girl gains enlightenment while observing the moon in a cave. Outside the Martial Emperor City, a sword god, alone with his sword, holds back 600,000 northern barbarian troops for 70 years. ... Li Nuo, courtesy name Zian, becomes the top scholar but is demoted to jailer, nicknamed the "Demon Slayer." A purgatory tower imprisons demons and a golden book grants treasures. He inadvertently creates chaos in the martial world and the court. And it all starts from his blind date with Ye Qingyu, the leader of the Demon Cult...