How to change countries in Journey 2s? How treason?

If you immigrate to the immigration officer in Wangcheng or Taohuayuan, you can go to the country you want to go to, but if the country you want to go to is a strong country, you can't immigrate, and you have to charge a corresponding handling fee for immigration. If you change from a strong country to a weak country, it is free, and the transfer fee of other countries is 500L,1d. . . different