Elevator on the 13Th Floor

In the newly delivered resettlement housing complex, the elevator button does not have "4th floor" but only "3A". Residents discovered that the corridor in Building 3A would never end until someone used a Feng Shui compass to detect that this building was built on the "Yin and Yang Realm". Architect Qin Mo was sent to handle complaints about design flaws, but he was accidentally involved in a secret that lasted for thirty years. When the walls peeled off, revealing floors that shouldn't exist, he discovered that some buildings were not designed to house people, but to contain something.