Eighteen years ago, the Seven Seals of the Apocalypse broke and the Devil awoke with only one thing in mind: revenge. With him awoke the spirits of fire, water, wind, and earth, created eons ago to lock away the Devil and his minions. Without physical form, they descended into the four least-expected candidates for Earth's salvation. Now, eighteen years have passed, and the Devil, having regained his strength, is ready to seek his revenge against the God who created him. Now it's up to the Four to stop him before our world is sucked into nothingness.