Sun Lanying's husband died, and she raised three biological sons on her own. While volunteering to teach in the countryside, she financially supported poor student Chen Erniu out of kindness. Thirty years later on New Year's Eve, her sons not only verbally abused her but also ruthlessly drove her out of the house. Sun Lanying collapsed frozen and unconscious by the roadside. Chen Erniu had already become a chairman, and upon accidentally running into Sun Lanying, he immediately rescued her.