Sheng Jun was so dedicated to Mao, that he became a red guard and he would lash out at his parents. Red guards were children that were very dedicated to Mao, their purpose was to destroy the Four Olds, and make China more communist. He would accuse them of not being loyal to Mao. His little sister, Sheng Na, was too young to understand what was going on.
It's a long story...
Oh my goodness! Grandma, grandpa, Sheng what happened to you two?!?!
Many children his age would write dazibaos about people who they thought weren't loyal enough to Mao. A dazibao was a piece of paper where people would write about other people's secrets and things of the same kind, and then they would publicly shame them for it. Sheng Jun decided to write a dazibao about his parents to show his dedication to Mao.
After a few years, Mao decided to take action and would send the red guards to farms so that they could cool off. Sheng Jun is sent away to the countryside, and he learns his lesson.
While on the commune, Sheng Jun finally met his grandparents, it had been a while since the last time he saw them. They were affected severely by the Great Leap Forward. His grandparents tell him about how the communes would have to give away all their food so that it could go to the cities. That's when Sheng Jun learns the truth about Mao.
Once Mao dies, Deng Xiaoping comes into power and he helps China to become stronger. Many years later, Sheng Jun gets married to Han Jiao, and later on, they find out that they are expecting a daughter. This happens during the Four Modernizations. They start to be able to afford more luxuries, which will help with raising their daughter.
Five years after they gave birth to their daughter, Sheng Fang, they find out that they are expecting a son. This is an issue because the one-child policy is in place, which states that families are only able to have one child. They end up having to abandon him on the streets. They named him Sheng Yong.