Ninh Tri Tinh, a hardworking programmer, dies from overworking and wakes up in a historical novel as a member of the villainous Ninh family. The family is filled with manipulative and malicious characters, including her grandmother, abusive father, conniving uncle, lazy cousin, and evil stepsister. Determined to distance herself from her... despicable family, Ninh Tri Tinh tries to live a simple life, but she is given the opportunity to participate in a system that can improve the lives of antagonistic characters.

Through hard work and intelligence, Ninh Tri Tinh becomes a renowned scientist and achieves her goal of transforming her family. However, her "good" accomplishments leave some questioning her motivations and character. Ultimately, Ninh Tri Tinh proves that being good is its own reward and that people can choose to change regardless of their circumstances.

In short, the novel portrays the journey of a former villains family toward goodness and self-redemption.