She spent twelve years disguised as a man pursuing the imperial examinations, only to die on the day the results were announced. Reborn, she becomes Su Niantang, a village girl. With ears that can understand baby talk and eyes that can see through people's hearts, she uncovers one deadly plot after another. From a silver needle hidden in the boots of the Duke of Jing's household to bitter almonds in the wet nurse's bowl at the Prime Minister's residence; from a young general whose condition worsens despite repeated treatments to a young prince kidnapped at five months old from the Princess Royal's residence, she repeatedly saves children from the jaws of death. Before long, the Prime Minister bows while holding his child, the Duke personally hangs a plaque in her honor, the general accepts her as his sworn younger sister, and the Princess Royal comes through the mud to see her. All the nobles at court, regardless of rank, respectfully call her one thing: Auntie Tang.