In 1932, Lin Wangxi, a fisherman girl from Chenghai, jumped on a red-headed boat and sailed to the Southeast Asia alone. She worked odd jobs in Chinatown in Bangkok, Siam, to survive. She struggled side by side with Chen Huaizhou, a fellow Chaozhou laborer, from killing each other to falling in love, and from abject poverty. To gain a foothold; although they are humble, they have great righteousness for their family and country. They devote themselves to raising funds for national salvation, and experience the assassination of overseas Chinese leaders, arrests by the Japanese occupation, and life and death in prison; from the perspective of the protagonist, they show the history, customs and customs of the Southeast Asian voyage at the beginning of the last century.