A set of wedding photos went viral online, featuring Zhang Jiagang, a 24-year-old firefighter working in Fenyi fire station in Xinyu city in East China's Jiangxi province, and Tang Caiying, his 85-year-old grandmother.

Tang used to be a cleaner at Fenyi People's Hospital. Twenty-four years ago, Tang saw two abandoned infants at the hospital and took them home. She named them Zhang Jiagang and Zhang Jiahui. Tang and her husband raised their own children and six adopted children with their salary and income from selling vegetables and recyclable waste. Zhang Jiagang grew up with Tang's grandchildren, so he called Tang "grandma".

Since 2001, firefighters in the Fenyi fire station began to chip in to help with raising the orphans after hearing of Tang's good deeds. Though firefighters came to and left the fire station year after year, the help didn't stop. During these years, Zhang Jiagang considered the fire station as his second home and wanted to be a firefighter too. In 2016, his wish came true.