The heroine Ling Wei is an elite member of the serious crime team of the Provincial Criminal Investigation Detachment. He is good at criminal psychology, trace investigation, and fighting skills. He has meticulous logic and a strong sense of justice. Due to the explosion that occurred while hunting down a serial killer, she traveled back to Shen Zhiwei, the daughter-in-law of the Anguo Palace of the Dayan Dynasty. She applied the spirit of modern rule of law and criminal investigation skills to ancient times, pursued procedural justice and truth, and realized her self-worth. The investigation of the case with the male protagonist Pei Yan, the young minister of Dali Temple, triggered a series of storylines.
