Xu Linfeng is a timid, socially anxious young man who secretly admires Jiang Wanyi, the goddess of his company, but doesn't even dare speak to her. One night, while heading home after working late, he runs into a red-clothed female ghost and faints on the spot, accidentally activating the Yin-Yang Heavenly Secrets System.
The System is sharp-tongued and absurd, and every task it assigns is more outrageous than the last.
As Xu Linfeng and Jiang Wanyi face one bizarre supernatural ordeal after another and solve countless mysteries, they gradually develop deep feelings for each other.
It's interesting and worth watching.