Xie Zhaoning is not the Queen Mother, but the last sword of the previous dynasty. After time travel, she re-examined the murder case as a forensic doctor and uncovered the shocking conspiracy of the royal family to kill the king and usurp the throne. However, she encountered Lu Heng, the orphan of the deposed prince - a piece of living evidence that should have been forgotten. When Su Yuqing's guilt, Xiao Lin's ambition, Yun Zhi's poisonous oath, and Cui Jiuling's silent conspiracy were torn apart, what she held tightly was not the phoenix crown, but the bloody broken knife. In this life, she does not want to restore the country, but just wants every buried name to be engraved in the most painful part of history.