White Knight Chronicles is a series of fantasy role-playing games that follow the adventures and deeds of the "pact makers" of the "Incoruptus". The Incoruptus are giant powerful knights created during the Dogma War solely for the purpose of war. Their immense power can lay waste to entire armies and when amongst other knights will resonate, greatly increasing their power. Matched only by other knights, powerful sealing magic was used to seal them away to lay dormant until their seals are broken during which they will once again seek a pact maker.
The pact maker enters a deal with the Incoruptus allowing it to use their soul as a fuel source and in return are able to control the knight. Only the pact maker can touch the knight’s artifact which houses the knight’s power. The Incoruptus can only have a pact with one person at any given time but should the pact maker die the knight becomes available to another wishing to wield its power.
A web exclusive prequel manga called Shirokishi Monogatari: Episode 0 Dogma Senki (White Knight Chronicles Episode 0: Dogma War Chronicleis) was released in 2008. The story takes place 10,000 years before the main game's story and follows another White Knight who predates the White Knight hero character of the first two games.