Death Is the End of the Fall

(Anti-hero tribute) Some people have supernatural powers, but they don't know that in addition to the outer world, there is also an inner world. In the other world, a man named Yami controls the "Dead Realm", but no one knows his true identity, because... Those who know have disappeared from this world! Yami has an attitude of not causing trouble, but not afraid of getting into trouble. He views everything in the world. The world is quietly changing over time, and some shadowy things slowly appear, either resisting or coexisting...