During the three hundred years of the Dayin Dynasty, the rivers and lakes were filled with swords soaring into the sky, and the temples were as powerful as the sea. Xu Xiao, the garrison envoy in the northern border, traveled to the rivers and lakes and used force to break the ban, which brought a great reputation to the dynasty, but also forged countless grievances. His only son, Xu Fengnian, was born with a Taoist sword bone, but his father used a secret method to seal his cultivation. For sixteen years, he pretended to be a dandy, indulged in drunkenness, and was ridiculed by the world.
Until that day, a prophecy from Qin Tianjian that "the crape myrtle falls in the west and the real dragon is in the north" spread throughout the world. The undercurrent of the dynasty was surging, and the world was about to be stormy. Xu Xiao was poisoned, the 300,000 cavalrymen in the north were in panic, and the seven vassal kings were eyeing him. Xu Fengnian unsealed his cultivation in front of his father's soul and unsheathed a rusty sword. Only then did he realize that he was not only carrying the inheritance of the Zhenbei Palace, but also the secret of a catastrophe that swept through the three worlds of humans, immortals and demons a thousand years ago.
From then on, he carried his sword out of the northern border, traveled to rivers and lakes, entered temples, went up to the Immortal Platform, and went down to explore the Nine Netherworlds. There is Wen Hua, a swordsman in green who accompanies him in the rivers and lakes with a wooden sword. There is a white fox with the most rouge-like face guarding the city gate for him. Jiang Si, the conquered princess of Western Chu, is with him. There is also Qinghuang, a thousand-year-old sword spirit who is accompanying him, revealing that he is the reincarnation of an ancient sword master in his previous life. And these rivers and lakes are never just the rivers and lakes - there are fairy mountains overseas that covet the destiny of China, there are demons in Jiuyou who plot to return to the world, and there is the great national master Yuan Qingshan above the temple to refine the destiny of the country in order to live forever...
This is a story about betrayal and protection, bondage and freedom. Xu Fengnian will use the sword in his hand to question the way of heaven and people's hearts, and walk out of his own way in this magnificent world.