In the turbulent years of the Republic of China, Su Xiyue transmigrates into a book as a concubine doomed to a tragic fate. Determined to rewrite her ending, she resolutely severs ties with her exploitative maiden family and makes a living through her accounting skills and honest hard work. From running a street stall to making Western pastries and ordering goods with ration coupons, she gradually saves enough money to redeem farmland and support her family. Huo Yansheng, a deputy officer in the patrol and inspection squad, develops feelings for her after a series of misunderstandings, and the two become devoted to each other through life and death. When faced with harassment and conspiracies from foreign trading companies, she calmly gathers evidence and defends her rights openly and honorably, protecting her loved ones and the man she loves. In the end, she uncovers the truth about her past and welcomes a new life of her own.