Gu Nan is reborn back to the third year of her marriage into the Wenchang Marquis Manor. In her past life, she was plotted against and miserably murdered by her husband Xie Heng and mother-in-law Huaiyang Junzhu. Reborn, she breaks the poisonous trap and resolves to leave the Marquis Manor. Xie Heng intends to have Meng Yunshang's son Xie Rui adopted under Gu Nan's name, vainly plotting to swallow Gu's generous dowry. Step by step, Gu Nan takes back her dowry and foils the Xie family's various conspiracies. Prince Jing Xiao Yan repeatedly reaches out in secret to help, and the two become entangled. While sparring with the Xie family in domestic courtyard battles, Gu Nan stabilizes her maternal family's commercial house, seizes the opportunity of inner court supervisor corruption to reverse her plight, quietly schemes, and awaits the right time to divorce and regain her freedom.