Gu Nian'an, a modern soul, traveled through time and became an ancient official lady. She ran away from her marriage in order to get rid of political conflicts, but was accidentally involved in the "Ji'an River Case" that had been settled for many years. Her fate is intertwined with Zhao Youyan, the minister of Dali Temple who is obsessed with pursuing the case and whose father is Zhaoxue. From using each other to moving forward hand in hand, they are trapped together in the turbulent confusion of the court. From the capital to Gyeongju, from the folk mystery of the "Mountain God's Marriage" to the secrets of the "White Snake" deep in the palace, they gradually uncovered a shocking conspiracy that spanned more than ten years and implicated countless people. In this cruel game of power and truth, can she escape the fate of a chess piece, and can he protect his only sincerity while adhering to justice?
Intention: To protect it for the rest of your life, in exchange for the mountains and rivers being safe and the lights always bright.