On the day of Shen Wanning's wedding, she was assassinated by her sister, Shen Wanrong. After being reborn, the two of them returned to the day when they had to choose a foster mother. Shen Wanrong, with the memories of her past life, insisted on choosing the favored Concubine Zhao because she believed that in the previous life, Shen Wanning's choice of Concubine Zhao led to a smooth life, even marrying the young marquis. However, unlike her previous choice, Shen Wanning realized that Shen Wanrong had also been reborn, but she didn't compete with her sister for Concubine Zhao's favor. This was because she deeply hated what Concubine Zhao had done to her in the past life, which included, but was not limited to, forcing her to watch spring palace pictures to learn how to seduce, teaching her the dance of a fallen kingdom—the Green Waist Dance, making her fall ill and get injured to vie for Concubine Zhao's favor, and so on.
