Nobody knows how long ago or for how long the Sea of Chaos has existed. Projecting from the Sea of Chaos are four "staffs," and Slayers takes place on one of these staffs. Until the passing of Hellmaster Fiblizo, the part of the world where Lina's adventures took place was sealed off from the rest of the world by a "god-sealing field." Since there is not much data on the world outside of the field, what will be explained here is the worldview held by the people within the field.

See, in each plane, a god holds the "staff/plane". In each World a god holds a staff. And of course, in each World, there is a Demon King, and the Demon King is trying to take the staff from the god. In other words, the Demon King is trying to take control of that World. In Lina's World, both the god and the Demon King have lost. However, they are not dead. They left behind remenants of themselved, causing the creation of gods/demi-gods (The Shinzoku) and Mazoku. These staffs/worlds are only part of the Sea of Chaos. The Claire Bible says that the Sea of Chaos isn't a place, but a living being, making the worlds only parts of the Sea.

Ages ago when the "staffs" were created, the battle between Flare Dragon Ceiphied and Ruby Eye Shabranigdu had already begun. Nobody knows how long the two powers fought, but it is known that some conclusion to the battle was reached approximately 5000 years ago. Ruby Eye's body was split into seven parts and sealed, while Flare Dragon, totally spent, sunk into the Sea of Chaos. However, Ruby Eye was only sealed -- not destroyed -- and Flare Dragon left behind four parts of himself -- the Earth Dragon Lord, Water Dragon Lord, Fire Dragon Lord, and Sky Dragon Lord -- to defend against Ruby Eye. In other words, the battle has not really ended.

Kouma-sensou (War of the Resurrection of the Demon King) (Borrowed from the site, Slayer Universe 4.1)

The war between the Water Dragon Lord and the Demon King of the North was brought about by Hellmaster Fiblizo approximately 1000 years ago. At the start of the war, Mazoku attacked the dragons of Dragons' Peak, and there was a sharp increase in number of attacks by demons, which shows that the Hellmaster had no intention of attacking the Water Dragon Lord immediately. The purpose of these actions was probably to awaken Ruby Eye who had been sealed within members of the human race.

This plan works, successfully resurrecting one of the seven parts of Ruby Eye, the Demon King of the North, who then wages war on the Water Dragon Lord. What the Mazoku did during this battle was create a "god-sealing field" by placing Hellmaster Fiblizo, Deep Sea Dolphin, Greater Beast Zelas-Metallium, and Dynast Grauscherra in the north, east, south, and west points of the Kataart Mountains, where the Water Dragon Lord resided. This weakened the Water Dragon Lord. By using Chaos Dragon (who was also a dragon) as a medium, the Demon King of the North managed to offset the difference between the one-fourth of Flare Dragon and the one-seventh of Ruby Eye.

In the end, the Water Dragon Lord was defeated, but the Demon King of the North became unable to move from the Kataart Mountains. This enormous battle involved humans, elves, dragons, and Mazoku. As a result of this battle, the power of the gods, which was one of the few ways to fight against Mazoku, was lost.

Slayers Geography (Borrowed from Slayers Universe 4.1)

Countries, Cities, Towns, and Villages

Lina's adventures take place in an area about the size of Europe. The land is further divided into countries (empires, federations, etc., but mostly monarchies), but there are no clear borders, because the capitals are surrounded by a number of large cities, which are then interconnected with other large cities by roads, and along these roads are towns and villages. This means that, away from the roads, there are uninhabited mountains and forests, and there are lands that make it impossible to draw boundaries. Most people think things like, "Up to that mountain is my land." Entry is regulated on the city level, but one can pretty much travel freely between the countries.

Places of Importance to the Story

Zefielia

Lina's birthplace. For some reason, a lot of "heroes" and "legendary" people have come from this country. When assassins and spies are sent to this land, they fail to return and even a Knight of Ceiphied is said to be working as a waitress here. The land seems to be the right place for developing hardy people.

Kataart Mountains

Originally a "holy mountain" guarded by the Water Dragon Lord, but after the War of the Resurrection of the Demon King, it has been turned into the headquarters of the Demon King of the North. There are also Dimos Dragons, said to reside only here.

The Headquarters of Ruby Eye's Lords

Hellmaster Fiblizo rules the Desert of Destruction which lies to the east of the Kataart Mountains. To the west, ruling the Demon Sea, is Deep Sea Dolphin; Wolf Pack Island, to the south, is the domain of Greater Beast Zelas-Metallium. Dynast Grauscherra has claimed the North Pole as his headquarters.

If you've ever wanted a Slayers World map, here's one: