The beginning of the Engkor Empire started with 3 powerful families

  The Som Family, the Chakrea Family, and the family of the Golden Land, at the time, the current Engkor Empire, were originally divided into multiple nations

  The river of the Golden Land is originally belonged to the Kingdom of the Golden land but during the war of the expansion of the Cylard Empire, the Champu Kingdom and the Chey Kingdom join hand and starting to invade the Kingdom of the Golden land cuase the kingdom to lost a big part of their territory and almost the entirety of the river however after the war die down the Chey Kingdom and the Champu Kingdom can't seem to able to make a decide how much they should divide the territory between them. This heated argument caused the two once-friends to go to war as enemies. In the end, the Champu Kingdom emerged victorious and claimed the majority of the territory

  Stolen from Royal Road, this story should be reported if encountered on Amazon.