This book tells the tragic history of the poor Chinese people who were tricked or forced to work hard in Nanyang and other overseas areas from the late Qing Dynasty to the early 20th century. At that time, the domestic society was in turmoil and people were living in poverty. Great powers such as Britain were in urgent need of cheap labor to develop colonies. Through false propaganda and deception, the colonists set up "recruitment centers" in Hong Kong and Macao, tricked a large number of poor people into signing contracts, and sold them overseas as "piglets". During the transportation process, these Chinese workers were kept in poor cabins with no dignity at all. After arriving at their destination, they had no personal freedom, suffered harsh treatment from their employers, and lived in dire straits.
Despite this, some Chinese workers have gradually established themselves overseas and even accumulated a certain amount of wealth due to their hard work and tenacity. At the same time, as overseas Chinese forces increased, they began to awaken and actively participate in and support domestic revolutionary movements. Through this period of history, this book shows the suffering and struggle of Chinese workers, as well as the deep concern and selfless support of overseas Chinese for the fate of the motherland. It reveals the cruel reality of being beaten when falling behind, and also demonstrates the indomitable fighting spirit of the Chinese nation.