Under the surface of the bustling city, there is a mysterious world of immortality hidden. Immortal cultivators hide in modern society and live as ordinary people, but they shoulder the important task of maintaining the balance between the two worlds. Yu Chanzi and Yu Zhi are two elite disciples from different sects of cultivating immortals. They carry out tasks in the city with the codenames "Yu Chanzi" and "Yu Zhi", but in an accidental encounter, their fates are intertwined.
Yu Chanzi is calm and reserved, with profound knowledge of swordsmanship and spells; Yu Zhi is lively and witty, good at magic and illusion. While investigating a series of mysterious disappearances, the two gradually discovered that there was a shocking conspiracy hidden behind it - a powerful sect in the world of cultivating immortals, the Tianji Sect, was using special talents in the city to conduct evil cultivation experiments in an attempt to break through the bottleneck of cultivating immortals. As the mission progressed, Yuchanzi and Yuzhi fell in love with each other for a long time while fighting side by side, but they also faced numerous pursuits and life-and-death tests from the "Tianji Sect". They must break through the numerous blockades, expose the conspiracy of the "Tianji Sect" to the public, and let the supreme leader of the world of immortality, the "Emperor", know the truth in order to achieve a just verdict. However, this struggle is not only related to the future of the world of immortality, but also tests their courage, wisdom and trust between them.
When the truth gradually emerges, how will Yu Chanzi and Yu Zhi choose? Can their love blossom and bear fruit in the gap between immortality and reality? A battle between justice and evil is about to begin in the hustle and bustle of the city...
