The Devil

Story
The King of evil, ruler of the Underworld, he controls everything in the Afterlife with the power to thrust the whole world into chaos, but the peace between everything in the Arc En Ciel Kingdom became very boring to The Devil. In his endless boredom, he dreamed of war, bloodshed and cosmic unrest.

He devised a plan to make things more interesting by unleashing the Curse of the Eternal Night, a curse that summons undead monsters to hunt down the humans in every place they can reach... but the Humans, for some reason, did not like being attacked by hordes of monsters and being ripped apart. They summoned their champion, The Wizard, to find the power to usurp the devil's power and dispel the curse.

In response, while still looking for a little fun, he sent his own agent of destruction, The Great Jack, to take down The Wizard and doom the world to the Curse before he can save it from The Devil's minions. He promises that Jack will roam free with his misdeeds forgiven if he can complete this one simple quest.

Throughout Jack's journey, he sends his very own Agents of Hell to help him fulfill his mission, like an Owl guide for example, as he doesn't trust that Jack will go through with his task.