In the winter of 1964, twins Yan Xin and Wang Gui passed away thirteen minutes apart. When he was six years old, his mother hanged herself. At the age of seven, they were sent back to the city to live with others. From then on, my sister was no longer a sister, she became half of my brother's mother. The younger brother is no longer a younger brother, he has become a man who wants to protect his sister all his life, but can't protect anything. A family, two brothers and a sister, sixty years. When the dust of the times falls on little people, they are like a mountain.