A few years before and after 1921, on the vast land of China, four children were born in Northeast and Lingnan, Shanghai and Guangzhou. Among them were orphans whose parents had died, a daughter of a rich businessman's family, a son of an Orion from Zhuang Village, and a daughter of a displaced Yao Village. No one expected that they would become one family due to the sweeping tide of the times, and no one could stand in 1921 and walk through the fog of history. They expected that in the next hundred years, these four children, their families, relatives, friends, and descendants, together with hundreds of millions of Chinese, would actively or passively try to walk through various paths of survival and strength. The road has no end yet, but the journey that the Communist Party of China has led these ordinary people has already been a glorious road.