Shi, a modern cultural relic restorer, unexpectedly traveled to Dajing. As soon as he was born, a meteor fell from the sky and shook the palace. He was regarded as a disaster star since he was a child. He was taken away and raised by the reclusive national master at the age of three. Fifteen years later, her mother's clan, the Zhongyong Hou Mansion, was falsely accused of treason by the Prime Minister, and everyone was detained. They would be executed in seven days. Shi Buyu took the plan left by his master and returned to the capital as a disaster star to find evidence and overturn the case. He joined forces with Yan Shi'an, the late emperor's son who had been dormant for many years and endured the humiliation. She was able to spot the flaws in forged secret letters due to modern professional habits, but she encountered obstacles because of her identity as a woman, and she fell into a crisis of trust because of Yan Shi'an's concealment of the former emperor's past affairs. The two have to navigate the court controlled by powerful ministers and the intricate forces. They must not only save the entire family of the Hou family, but also expose the Prime Minister's conspiracy and protect the country of Dajing. Walking on the edge of a knife, the two went from testing each other to trusting each other. Not only did they bring order to the chaos and restore peace, they also completed spiritual redemption and confirmed each other's feelings.