The four continents of east, west, south and north check and balance each other. In the troubled times, the Northern Continent prince Lin Xuanyi was sent to the Eastern Continent as a hostage. He fell in love with the Eastern Continent princess Gu Qingyao and could not stay together. In the end, the yin and yang were separated, regretting for the rest of his life.
Purpose: Being bound by the country, we cannot stay together if we love each other.