After a devastating event swallows all ten billion people on Earth, you follow in the footsteps of Joe, a software consultant who was revived in the distant future as a Soul Eater. A mysterious voice urges him to endure and survive the deadly magical world of Earth, granting him an ability to resurrect the ensnared souls of his era.

Prophecy of his arrival strikes fear into the peaceful nations, as Joe attempts to reshape the world with the knowledge of humanity and discovering the secrets of the Soul Eater legend.