In the Dasheng Dynasty, the emperor is in danger, and the power struggle between the harem and the previous dynasty is about to begin. The former imperial concubine Su Shi was imprisoned in the cold palace because of a crime committed by her family. She was assassinated and her life was hanging by a thread. Fortunately, the mysterious mechanic replaced her broken body with a precision mechanical prosthetic body, and she came back from the dead, but she has a heart of steel since then.
Three years later, she changed her name to "Xin Niang" and returned to the court as a female official. The mechanical heart gives her extraordinary computing power and can accurately predict every move of the various forces; the steel arm can repair the most confidential agency secrets and tear apart hypocritical masks. She dealt with the covetous prince and the concubine who concealed a knife in her smile, and step by step she got closer to the truth of the family's destruction.
However, when the truth emerged, she discovered that her enemy was not only the powerful chief minister, but also the dying emperor himself. And the mysterious mechanic who rescued her actually involved the secret forces of the former deposed prince. With a body of steel, how will she choose - to overthrow the imperial power and pay with blood? Or should he be ruthless and choose a future worthy of continuation for this decadent dynasty?
