Su Qinghe earns the highest score in the county and gains admission to a top-tier 985 university, but her son-preferring parents force her to abandon her studies to support her younger brother. At her most desperate moment, her grandmother sells the family's old yellow ox and the silver lock she received as part of her dowry to help Qinghe leave the mountains. Years later, Qinghe rises to become a powerful woman in the tech industry, fights back against exploitative relatives and workplace sabotage, and ultimately establishes an educational fund to pass her grandmother's love on to more girls.