Sin has run rampant and taken over on a global scale. Killing games have become the latest craze. There are those not of this world who will form contracts with the highest bidder in order to host one, and those who succeed in hosting are revered. The contestants are all ultimates who have been forcibly taken. Gone are the days when ultimates were looked up to. Now, unless they are able to pay a heavy price in order to host a game of their own, they are viewed with scorn and disgust.
Welcome to Jigoku Mansion. We hope you enjoy your stay. Not that you have much choice. You and 23 others have been chosen, for better or for worse. Someone determined to make history has paid millions and signed part of their soul over to a group of demons known as the 7 Deadly Sins.
Will you find out who is behind your imprisonment? Will you kill or be killed? Will you die and end up in one of the Eight Great Hells of the real Jigoku? Or will you beat the odds and survive? Only time will tell.