In the reinforced concrete city of Shanghai, Lin Zhou, a 23-year-old unemployed young man, lived like a speck of dust until he accidentally picked up an ancient jade engraved with mysterious patterns. The moment the jade pendant became hot, a cool breath flowed into his meridians, which not only healed the old injuries, but also allowed him to show extraordinary agility and strength in street conflicts.
This ancient jade is actually the carrier of the "Xuanjia Sutra", a method of cultivating immortals that has been lost for thousands of years, and Lin Zhou's bloodline contains the genes of an immortal cultivator that even he himself does not know about. As he gradually mastered the method of breathing and refining qi, his ordinary life was completely broken: mysterious shadows on the streets late at night, a family of cultivators secretly spying on ancient jade, monsters hidden in urban legends...
From a frustrated person under the overpass to an "alien" wandering between modern society and the world of immortality, Lin Zhou must find a balance between rent, attendance and slaying demons, using his cultivation during the Qi refining period to fight against the ancient forces lurking under the neon lights, and uncover the secrets behind his life experience and the ancient jade - the so-called "urban legend" is just the unhidden tail of immortality cultivators and monsters.
