After being betrayed and buried alive by her family, Zelma miraculously survives but loses her memory, regressing to the mentality of a five-year-old child. As a beggar on the streets, she is rescued by Jimmy, the seemingly frail CEO of the Pham Group. Zelma and Jimmy entered into a quick marriage. However, their happiness was short-lived as the Pham family treated Zelma poorly. Without meaning to, she outsmarted them all with her playful tricks. During a confrontation with Jimmy's stepmother, Zelma unexpectedly regained her memories and decided to hide her true identity while living in the Pham household. As she and Jimmy worked together to stand up against their families, a deep bond forms between them, leading to an unexpected romance amidst the chaos.