Lin Wanqing, a graduate student in the Department of Modern History, accidentally entered the ancient book "Secrets of the Apocalypse" and became the vicious female supporting concubine Lin who was infatuated with Prince Jing and ended miserably. In order to get rid of the fate of being given poisonous wine and bringing down the family, she changed her original owner's arrogant and domineering temperament. With her professional historical knowledge and clear desire to survive, she took the initiative to express her goodwill to Shen Yan, the brooding Prince Jing of the city. She used ancestral lung-moistening medicinal diet to alleviate his old illness and gradually alleviate his vigilance. After getting involved in the water transport dispute, she cleverly used her wits to come up with a plan to remove the salary from under the cauldron and teamed up with Su Wan Ning to bring down the power of the three princes. Faced with a series of conspiracies such as poisoning, framing the prince, and collusion in the Western Regions, she calmly broke the situation, and gradually grew from a side concubine who relied on for survival to a partner who could fight side by side with Shen Yanci. In the thrilling game of royal intrigue and court, Lin Wanqing not only reversed her own destiny and protected the Lin family, she also cared about the world and promoted the establishment of a girls' school in the capital. As a woman, she wrote her own vivid chapter in the turbulent Apocalypse years.