In a humble village, a poor man marries a woman with a mental illness, and they have depended on each other ever since. Unable to have children, they become the subject of gossip among the villagers. One day, the wife discovers an abandoned baby at the village entrance and brings her home. Despite the villagers' disdain and attempts to dispose of the child, the wife insists on keeping her, naming her Sunshine. Years later, Sunshine earns admission to the most prestigious university, and the wife believes their luck is finally changing. However, life continues to present new challenges...