He Xi was once Xiao Yuheng's substitute pet. Later, she fell in love with Pei Shucheng, the heir to the Pei family, who was using the alias Yu Cheng. However, she had no idea that he was already married to Su Jin and had a daughter. While pregnant, He Xi was tricked by Su Jin into suffering a miscarriage that left her unable to have children. She was also falsely accused of abusing the child and endured constant mistreatment from the Pei family. In despair, He Xi devised a plan to fake her own death and escape. After successfully disappearing, she started a new life under the name Li Yuchu. Not only did she achieve success in her career, but she also found love with Lin Yanci, who had secretly loved her for ten years. After He Xi's supposed death, Pei Shucheng and Xiao Yuheng discovered Su Jin's misdeeds, took revenge on the Su family, and divorced her. Years later, they unexpectedly crossed paths with He Xi again. By then, Pei Shucheng was in the terminal stage of stomach cancer, and he ultimately died consumed by regret.