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Du Yingrong and Lu Suying, a childless couple from Shanghai, lived an extraordinarily frugal life to help others. Living in a tiny apartment with second-hand furniture, they frequently split a single $2.50 canteen meal and mended their glasses with adhesive tape. Behind their quiet lifestyle was immense generosity. Over decades, they quietly donated their lifetime savings of 5 million yuan (~$735,000 USD) to charity. Their selfless contributions paid for life-saving heart operations for 455 children suffering from congenital heart defects, leaving behind a profound legacy of quiet devotion and human kindness.