The modern city "Qingning City" - on the surface it is a prosperous city with many high-rise buildings, but in fact it is a "weak zone where yin and yang meet": faded red wedding dresses are floating among the broken walls of the demolished buildings in the old city, infusion bottles from abandoned hospitals in the 1990s automatically drip dark red liquid at midnight, the stairs of the old teaching buildings of universities will add a 13th step after 23:00, and the iron chains of the abandoned docks on the riverside are wet and entangled with water-weed-like hair all year round. These areas have become high-risk places for supernatural events due to "remaining obsessions" and "disordered earth veins." The "signal blind spots" marked on the mobile phone map are actually the overlapping areas of the Yin and Yang realms, where the GPS will display "You have deviated from the path of the Yang world."
The underworld has set up a "Yin Yang Station" here. The mahogany signboard will ooze cinnabar writing on cloudy and rainy days. The "branch entrance" of the boss Lao Zhou (temporary commissioner of the underworld's "Ministry of Souls and Yangjian Affairs Section") Northeast Chumaxian is hidden on the second floor of the "Northeast Big Rice Bun" restaurant in the village in the city. A porcelain statue of Master Hu San is placed on the incense table. The inheritance of Taoism is scattered among the people: the Liu family's talisman technique is barely maintained by missing pages of ancient books and ancestral compasses, the Su family's secret technique of exorcising corpses is hidden in the mezzanine of the "Forensic Medicine Atlas" in the medical examiner's office, and the "raising little devil" jars of Southeast Asian head-turning masters are disguised as milk tea cups in university towns. In the takeout counter, all parties used the "Yin Yang Station" as a neutral zone and traded intelligence with "Yin De Points" to maintain a fragile balance - until Qingning City's ground suddenly accelerated and became chaotic, and cracks in the Yin and Yang world began to spread on the glass curtain wall of the CBD office building. After becoming temporary underworld coordinators together, they encountered strange stories.