Lin Heng, the curator of the National Museum of China, has an infinite yearning for the prosperous Tang Dynasty. He accidentally traveled to the turbulent ninth year of Wude and became a scholar in trouble who was on the verge of death.
With historical insights and wisdom that spanned a thousand years, he accurately bet on Li Shimin, who was still the King of Qin, and used a shocking plan to break into the bloody storm in front of the Xuanwu Gate. He did not fight in front of the battle, but controlled the situation with unparalleled ingenuity. From then on, he became the sharpest and most invisible hidden blade under the new emperor.
The prosperous age of Zhenguan began. He strategized in the court, promoted innovation, and competed with capable ministers such as Fang Xuanling and Changsun Wuji. On the battlefield, he made frequent ingenuity, helping Li Jing and Li Ji to pacify the four sides, and forged martial arts with his literary heart. He seems to have been promoted step by step, reaching the rank of prime minister, but he has also unknowingly fallen into the fatal whirlpool of the prince's succession.
On one side is the talented but increasingly suspicious emperor Li Shimin, and on the other side are the various clans and remnants of the old prince who are eyeing him. Under this glorious and prosperous age, there are turbulent undercurrents. Let's see how a modern man can not only assist the Mingjun in creating immortal achievements in this chess game called the world, but also find a perfect way to retire when his achievements are so great that he can shake the master.