Yang Zhiji

A ghost who died unjustly found the girl, hoping that she could help him catch the murderer and clear his name, but the girl refused to help. At the ghost 's repeated requests, the girl decides to help him, and she and her boyfriend embark on a journey to find the truth......

The Princess and the Slave tells the story of a fallen princess played by Lee Hee-yeol who, by a twist of fate, swaps identities with a female slave played by Wang Jingluan. The female slave turned into a princess, waiting to become the queen of Shu. The real princess was sold as a slave to a brothel and happened to meet the King of Shu, falling in love with him. Meanwhile, there was a killer lurking beside the "princess"