Go Eun Sung (Han Hyo Joo) is a kind-hearted and optimistic young woman whose life takes a drastic turn after her wealthy father suddenly dies. Her cruel stepmother, Baek Sung Hee (Kim Mi Sook), seizes all her assets, leaving Eun Sung and her autistic younger brother, Eun Woo (Yeon Jun Suk), penniless and homeless, and Eun Woo goes missing soon after. In a twist of fate, Eun Sung saves elderly ailing CEO Jang Sook Ja (Ban Hyo Jung), who is disgusted by her own spoiled grandchildren, particularly the arrogant and cold-hearted Sunwoo Hwan (Lee Seung Gi). Impressed by Eun Sung’s compassion and resilience, the CEO decides to bypass her own family and names Eun Sung as her sole heir. As Eun Sung searches for her brother and navigates the challenges of her new life, she must prove her worth, uncover her stepmother’s deceit, and find love amidst adversity.
