Lin Jian, a graduate student in the history department, is bound to a system.
But it seems to come from the past: someone who is proficient in the Book of Songs but doesn't know about mobile phones, and who is well versed in Zhou rites but doesn't understand modern times. Until he saw in his dream - a blood-stained Spring and Autumn nobleman wearing a mysterious sword, whispering to the jade. And the pattern of the jade is exactly the same as the broken slip that activated the system.
"I am Zizheng, the prince of the Song Dynasty. My era was in 510 BC."
From then on, Lin Jian's life was divided:
During the day, he makes use of the system's "database" that spans time and space to make a careful living in modern times; at night, his consciousness becomes the "staff" of the Spring and Autumn Prince Zizheng, fighting for the survival of a precarious country amidst real intrigues and bloodshed.
Every time he offered a strategy, Zizheng's fate changed by one point;
Every time Zizheng changed something, Lin Jian's modern world trembled: cultural relics disappeared, records were rewritten, and some people even began to forget his existence.
Five hundred years apart, they are each other's only allies and variables. When the corrective force of history surges back, the true purpose hidden under the cold system voice gradually emerges...
Are they saving history, or are they ending each other?