After the brutal murder of the Fu family, only daughter Fu Zhaoxue survives, with evidence pointing to her former lover, Gu Jingzhou, as the culprit. She returns under a new identity as Lin Qianyu, marrying into the Gu family as Gu Jingzhou’s sister-in-law to uncover their hidden secrets. Determined to get close to him, she navigates a tense, complex relationship, stirring conflict among the Gu brothers. As the truth unfolds, long-buried feelings between Lin Qianyu and Gu Jingzhou are rekindled, leading to an intense clash of revenge and forbidden love.