She repeatedly solved strange cases and entered the Criminal Prosecution Division, but became a lackey of powerful ministers who were hated by others? And because the fox pretended to be the tiger, and he must retaliate, in order to handle the case by any means, she got the name of Jade Rakshasa? Killed one after another, the princess committed suicide... The cases are all related to two secret court cases in the late emperor's time ten years ago? Under the mysterious case, her true identity is gradually revealed...