Set during the Liu Song Dynasty, the story follows the brilliant and courageous Shen Li Ge, an assassin who seeks to overthrow the corrupt government. During a failed attempt to assassinate the regent Liu Yi Kang, she is forced to assume the identity of the eldest daughter of the Shen family. As she navigates the treacherous waters of the imperial court, she finds herself unexpectedly drawn to Liu Yi Kang, who is secretly working to reform the state and dismantle the power of the aristocratic clans. As Li Ge and Liu Yi Kang join forces to navigate political conspiracies and internal strife, they must overcome deep-seated mistrust and the machinations of powerful enemies. Their journey is one of personal growth and sacrifice, as they strive to bring stability to a fractured nation while grappling with the complexities of their burgeoning romance and the heavy burdens of their respective roles.