Gu Zhiwei, the third young miss of the Gu family, feigns idiocy. In her past life, she was an undefeated female legal advocate, seeking only to live in peace. Xiao Jingheng takes advantage of the Gu family's soaring debts, lays a contractual trap, and forces the second elder sister to pay the debt with her body. At a critical moment, Gu Zhiwei tears off her disguise, sees through the document snare, roots out the traitor within the manor, presents layer upon layer of evidence in the official hall, smashes Xiao Jingheng's conspiracy to swallow the Gu family, protects the family's thorough safety, and asks only for a free and easy life henceforth.