The heroine who inexplicably traveled to the Qing Dynasty faced a strange body full of secrets, as well as various unexpected and unimaginable events. How should she solve it? What kind of grudges does the elder brother in the Nine Sons Conquer Heirs have with this body? She was submissive in this huge palace, just to save her life, but unexpectedly, danger kept coming. In this Forbidden City, who can understand her tolerance, helplessness and loneliness?