The mainland is divided into two countries, East Jin and Xili, with the "Jin River" as the boundary, and they have been hostile for hundreds of years.
: Dong Jin worships fire (Jin), and Xili worships wood (pear). It is said that the two races have the same origin, but they split due to the "Twin Curse".
Curse: If twins fall in love, one of them will die; if they kill each other, the fate of the country will be reversed.