In the splendid but undercurrents of the Dajing Palace, Zhao Lingyue, a graduate student in the Department of Modern History, transmigrated into the frail seventh princess and became the only blood relative of the six-year-old emperor. On the surface, she is a puppet in the eyes of the Queen Mother and the powerful ministers, but in fact, she has modern wisdom and a tough soul, and she makes every move in the turbulent court. Personal bodyguard Shen Qingci, a sinister queen who is as cold as frost and loyal, is both her sharpest sword and her gentlest shield. The two got to know each other amid conspiracy and swordsmanship, jointly investigated the cause of the death of their direct descendants, fought against the forces of the regent, experienced death in the execution ground, and life and death on the battlefield. In the end, they exchanged blood and tears for the return of imperial power and the execution of the traitor. When the moon fell over the palace wall, she gave up her phoenix crown and took him into hiding in the mist of the south of the Yangtze River, where she opened an academy and raised peaches and plums, fulfilling the purest promise in troubled times. A sadomasochistic epic that began with intrigues, tempered with life and death, and ended with fireworks ended tenderly.