Xie Guihong, the Marquis of Zhenbei, was charged with treason and cut off his family ties at the execution ground to save his children. The phoenix feather jade on the eldest daughter Xie Mingtang's body revealed her life experience, and she was the orphan of the late queen. She dealt with various forces in the palace, and with the help of Chen Wang Xiao Zhi, she uncovered the Queen Mother Shen's accomplices, deciphered the truth about the underground palace's secret edict, and exposed the evidence of the Queen Mother's murder of the late Queen and manipulation of the court, and all those who rebelled against the party were brought to justice. After the unjust case was revealed, Emperor Yuan Sheng made Xie Mingtang Princess Changning. She did not want to live in the palace, but still stayed in the Xie family where she was raised, and the family reunited and stayed together.
