Out of gratitude for Zhang Biao's kindness in giving him a steamed bun when he was a child, Zhang Zhaowei cared for the elderly Zhang Biao, who lived alone, for three years and signed a legacy support agreement at Zhang Biao's request. After receiving his share of the demolition compensation, Zhang Biao gave it all to his three biological sons and falsely accused Zhang Zhaowei of coveting his money and abusing him. Heartbroken, Zhang Zhaowei sued to terminate the agreement. Surveillance footage, payment receipts, recordings, and other evidence exposed the lies, leaving the three brothers disgraced for neglecting their father. Zhang Biao died of illness in lonely old age, leaving behind demolition compensation for his ancestral home that Zhang Zhaowei refused to accept. Later, Zhang Zhaowei opened a heartwarming community canteen and provided free assistance to elderly people living alone, earning the respect of his neighbors.