Nan Si (Hu Dandan), the favorite concubine of the Wu Dynasty, had a miscarriage during the war, resulting in premature birth and dying. In order to save his lover's life, Emperor Cang Hanyu (Yan Zixian) made a contract with the high priest and took Nan Si to a new time and space in exchange for his daughter Xiao Fenghuang to break the short-lived curse. In one life, they were a young master of a noble family and an abandoned wife in a deep house, and in another life, they were a favored princess and a commoner husband. No matter the intrigues of the mansion or the complicated situation in the court, and no matter whether the two have memories of their previous lives, Cang Hanyu and Nan Si always put each other in the most important position, support each other, and protect and help their lovers in their own way...