It refers to middle-aged people who go to Westport to try their luck without any achievements in China. There is a popular saying that if young people don't work hard, Westport becomes a brother.
Westport earns money and Westport spends money, but Cambodian men don't go home. There is no snow in the Philippines, and there is no love in Manila. Enter the dragon and turn it into a flower. This is your home.