The world is divided into two realms, Yin and Yang, and each maintains its own rules. People in the two realms can only cross by death or rebirth. There is a dark area between the two realms, and there are always some people from the two realms who try to cross this place to cause trouble. There is a kind of people in the world who walk between the yin and yang realms and maintain the order of the two realms. People call them black and white envoys.
Bai Yingze, who had just finished filming: It's not that I don't have it, I'm just an ordinary person!
Concept: A two-way journey into the supernatural world