Wen Heng divorces and raises her daughter alone after her family goes bankrupt. Five years later, she meets Lu Jinshu, now a billionaire, and joins his company. Their daughter mistakenly recognizes him as her father, raising suspicions. After facing schemes from rivals, Wen reveals her identity. Lu misunderstands a paternity test but confirms fatherhood during their daughter's allergy crisis. Wen confesses her feelings, and they reconcile.