Li Chuchu, an illegitimate daughter of the Duke's Mansion, has lived under the harsh suppression of the official wife for over a decade. When fate suddenly turns against her, she unexpectedly discovers that there is a mastermind behind her birth mother’s death. She then sets out on a path of vengeance. In the process, she becomes entangled in a web of love, hatred, and obsession with her legitimate half-brother Li Zhen.