During the Tianbao period of the Tang Dynasty, undercurrents surged under the prosperous age. Lin Yu, a history buff, accidentally traveled through time. He knew clearly that the Anshi Rebellion, a catastrophe that would turn the Tang Dynasty from prosperity to decline, was about to break out.
Being penniless, he started to save Wan'er, a girl from an official family, and relied on his knowledge and vision beyond the times to solve the dilemma and enter the official career. He repeatedly warned the court, but with little success. After the mysterious old man taught him the art of thaumaturgy, Lin Yu became even more powerful.
He circles the court and conspiracies, collects evidence, and foils assassinations. Can he finally convince the emperor to deploy defenses in advance and reverse the course of history? A race against time begins.
