The Realm of Evil, jigoku is a hellish nightmare of a place. Within the Spirit Realms both jigoku and tengoku are in direct opposition to each other. Both realms are self aware and are in conflict with each other. However, they are barred from direct conflict by the delicate balance of the Spirit Realms. As a result, the two realms’ war usually spills into the other realms, especially Ningen-do. Fu Leng was drawn into jigoku when the Kami fell. The realm sensed the Kami was vulnerable and corrupted him.