Li Muhe, an orphan driven by revenge, returns under the identity of Shen Nian and enters a strategic marriage with young marshal Lu Yueting. As she navigates complex family and political schemes, Lu Yueting becomes both her protector and ally. However, the reappearance of a former comrade raises suspicions about his past, complicating their relationship. Amid growing external threats and internal conspiracies, Li Muhe must confront her past and decide between vengeance and love.