Princess Xiao Mingtang lost her mother at a young age and was sent to live with her maternal uncle's family at the Cheng'en Marquis Estate for four years. Her uncle and aunt pretended to treat her kindly while secretly depriving her of proper food and clothing and embezzling the entire inheritance left by the Empress. They even deceived the Emperor into believing that the princess did not wish to return to the palace. Xiao Mingtang possesses a piece of twin-heart jade that allows her to hear her father's thoughts whenever she is near him. During the Mid-Autumn Palace Banquet, she discovers that her father has never abandoned her and publicly exposes her uncle's family's deception. The Court of Judicial Review launches an investigation, uncovering forged documents, fraudulent accounts, and other evidence of their crimes. Her greedy maternal relatives are convicted and exiled. The princess reclaims her belongings and returns to the imperial palace. Gradually, she learns to stop relying on her mind-reading ability and finds the courage to express her pain. Father and daughter finally resolve the emotional wounds that have kept them apart for years, and the princess begins a peaceful new life.