Lin Xuan, a modern historian, accidentally transmigrates to the Kangxi era of the Qing dynasty and becomes an awkwardly situated young eunuch in the Forbidden City. To his horror, however, he discovers that his body is completely intact! To conceal this deadly secret, he must tread carefully to survive in a palace rife with power struggles.
With his knowledge of history and a modern man's ingenuity, Lin Xuan gradually finds his footing in the treacherous inner court of the Kangxi era, rising from a minor role in the Imperial Kitchen to draw close to Crown Prince Yinzreng's faction. But he soon discovers that history is far more complicated than the books claim. The struggle for the crown prince's succession, clashes over imperial power, and palace rivalries all conceal deadly threats. Every choice he makes affects not only his own fate, but may also change the course of the entire Qing dynasty.
More complicated still, amid the dangers of palace life, he falls for a clever and kindhearted palace maid, while becoming entangled in a complicated relationship with the brave and decisive Fourteenth Princess. The taboo of his identity, the bonds of love, and the allure of power repeatedly push him to the edge of fate.
Will he follow history and become a silent witness, or break free of destiny and write a new chapter? In this game across time, Lin Xuan uses his intelligence and perseverance to create a thrilling palace legend!