There is no background plot as of yet and the only motivational factor of the mod is to unite New Elgante in an era of peace. However, all of the factions are at odds with each other and peace is impossible until all opposing factions are conquered and assimilated by either the faction you side with or your own faction. Unfortunately this is a very old mod and hasn't been updated for quite a while. However, the mod's creator, under the alias Crossbow Joe, one of New Elgante's companions, claimed to export the mod to the upcoming Bannerlord sequel.