The Female Spy of Yanjing

[Coolheaded, icy female undercover agent x outwardly cold, inwardly devoted prince, one-on-one romance] One day, the once-noble Liu Xiyue woke to find herself a condemned prisoner in the Ministry of Justice. To save her life, she began hunting for the person who had murdered her. She had thought it was a simple case of revenge, but it unexpectedly set off a struggle for the throne in Yanjing. A headless case on the frontier, the massacre of the Chancellor’s household, a mysterious case in Yanjing… As she investigates one bizarre case after another, the truth behind her gruesome death gradually comes to light. But the truth is far crueler than Liu Xiyue ever imagined.