The path to immortality in the Cangwu Realm is treacherous. The immortal sect is aloof and regards all living beings as stupid dogs. The monks are obsessed with immortality and are cold-hearted. Mortals can only die with a flick of a finger. Lin Yan, a young man from Qingxi Town, has witnessed his neighbors being affected by disputes and displacement among immortal cultivators since he was a child, and he has long had the desire to protect him in his heart. Once while searching for medicine in the mountains, he mistakenly entered the remains of an ancient monk. In a desperate situation, he awakened the "Zhenyue Sword" that had been dormant for thousands of years. He was able to pass on the incomplete immortal scripture "Taiping Jue" and unexpectedly embarked on the path to immortality.
Unlike other monks who forget about the world in pursuit of Taoism, Lin Yan always remembers the pain of life and death, and takes "creating peace for all generations" as his lifelong obsession. He carries a sword and braves the world, not only to deal with the conflicts between the immortal sect and the battle between good and evil, but also to resist the ancient demonic tide hidden in the cracks in the realm, and to fight against those "immortal giants" who regard ordinary people as stepping stones. The road to immortality is long, but his Taoist heart is unwavering. He carries the wish of saving the world in a mortal body, splits the dark fog with the fairy sword in his hand, and walks out on his own unique path of peace on the strange fairy road. Finally, he becomes a legend who transcends the immortal world and protects the common people throughout the ages.