Shen Zhiwei, the concubine of the Shen family, was forced to marry the sick and frail eldest son, Xie Tingyun Chongxi. The world laughed at her for marrying a ghost who coughed up blood and was consumptive, but she pretended to be stupid during the day, turned into a ghost at night, and sneaked into the palace ancestral hall to find out the truth behind the tragic death of her biological mother.
Xie Tingyun, a medicine jar that seems to be dying soon, is actually a dormant hero. He saw the bride's disguise with a cold eye.
On a rainy night, Shen Zhiwei found half a tiger talisman in the ancestral hall, but encountered the shocking scene of Xie Tingyun strangling the assassin with one hand. The diseased appearance has faded away, leaving only the killing.
"The Crown Princess is pretending to be stupid, waiting for her husband to die?" He wiped the blood and sneered.
"The prince is coughing up blood, is he waiting for me to become a widow?" She pulled out her hairpin and faced her.
Showing the tiger talisman, she made a desperate move: "The military talisman is yours, and you are mine."
He put his arms around his waist and declared, "You are mine."
Since then, the two drama stars have reached a consensus. They maintain an absurd marriage in the open, but secretly work together to stir up troubles: break up conspiracies, fight against powerful people, and fend off foreign enemies. From testing each other to trusting each other in life and death, feelings secretly arise. Secrets of the current court and suspicions of the royal family are coming one after another, and the conflict of identity and the responsibility of family and country have become a test.
This chess game that started as a substitute marriage will end with the mountains and rivers as the betrothal, and they will spend the rest of their lives together.