My name is Zhang Li, a freshman who just wants to spend four years of college in an ordinary way. But on the first day of school, I was forcibly bound to the "Underworld Order Maintenance System" and was forced to jump repeatedly between the ocean of knowledge and the sea of real ghosts. While others were taking notes in class, I was in class to save the grudges; while others were dating in clubs, I was carrying a mahogany sword all over the campus to catch scapegoats. When the entire campus became a battlefield between Yin and Yang, I discovered that behind this seemingly absurd ghost-hunting game, there was a huge conspiracy that could subvert the world... And maybe I have never been an "ordinary person."
