The Devil’s Reign:The first law of void

Cast out of Heaven and stripped of his name, the former archdevil now walks the mortal world as a shadow of what he once was. Betrayed by the very beings he once ruled beside, he has only one goal-to reclaim his throne, no matter the cost. But the world he returns to is no longer the same. New powers have risen. Old enemies are waiting. And the greatest threat might not be Heaven... but what he is slowly becoming. — Description from novelcodex.org