The heroine Rong Ruo is the "good-for-nothing lady" of the Prime Minister's Palace, but she is actually the only survivor of the "White Cat", the intelligence organization of the Great Yan Dynasty that has existed for hundreds of years. She was sent to brothels, gambling houses, and academies as an informant since she was a child. It took her twelve years to build a complete intelligence network covering both inside and outside the court, from traffickers and lackeys to relatives of the emperor. She chose to disguise herself as a dandy because a dandy is the least likely to arouse suspicion. Everyone thought she was a dog that could only chew bones, but when she ripped off her human skin mask, they discovered that her bones were stronger than anyone else's. This is a dimension-reducing and slap-in-the-face story of "the heroine transforms from the biggest waste into the sharpest knife".
