Shen Lingyi kindly takes in her distant relative Zhou Guifang's family to stay, only to suffer from them usurping the nest. In her previous life, she was drugged, imprisoned, and died full of grievance. Reborn on the eve of the tragedy, she puts away her softness, secretly collects evidence, and fights back step by step. The Zhou family's scheme fails and an accidental fire breaks out; Zhou Guifang turns around to bite back with blackmail. Relying on the law, Shen Lingyi proves her innocence, exposes their past misdeeds, guards her own home, and realizes that kindness must have an edge.