During the Republic of China, evil spirits were rampant. Maoshan Taoist Lin Zhengying and his disciples Wencai and Qiu Sheng traveled around the world, using peach wood swords, yellow talismans, and Bagua mirrors as weapons to kill demons and protect the common people. From the Chilian snake demon causing trouble in Foshan, to the strange case of corpse poison in Yizhuang, to the blood curse in the ancient temple, and the revenge of the water ghost in the water town, the master and the apprentice worked together to solve the strange and murderous cases, but unexpectedly uncovered the conspiracy of a traitor from the same family to practice forbidden arts.
As the zombie king appears, the thousand-year-old zombie breaks the seal, and the blood demon comes to the world, the crisis escalates. Lin Zhengying gradually discovers that behind these evil spirits are controlled by the demon overlord, the demon king. The ultimate goal of the demon king is to seize the Tai Chi diagram, the treasure of Maoshan Mountain, and release the evil god Zhu Yin, who has been sealed for thousands of years. Maoshan was robbed and his master died. Lin Zhengying was appointed to take over as the master in the face of danger. He rushed to the Netherworld Valley and the Black Wind Temple in the Western Regions with his Tai Chi diagram, and fought to the death with the demon king and the evil monk, even using forbidden magic to "martyr himself."
Finally, on the sea of netherworld and blood in the secret realm of the Qinling Mountains, Lin Zhengying uncovered the truth of the thousand-year contract. Faced with the terrifying power of the evil god Zhu Yin, he sacrificed his soul to the Tai Chi diagram and turned it into a golden sword to completely kill the evil spirits. He used his life to fulfill his oath of "a disciple of Xuanmen, protecting the common people." And his spirit and Taoism turned into the fire of righteousness, passed down by Wencai and Qiu Sheng, guarding the peace of the three realms, leaving behind the eternal legend that "the soul of a hero is immortal, and evil cannot defeat good".
