They were once the most feared duo known as Ezra and Irene Belmonte, two powerful twin exorcists who completely eradicated the demon race and sealed away their king. However heroic their jobs were, at their core, the twins were not good people. After tormenting their home for long enough, they were executed right after defeating the demons on their eighteenth birthday, but there was one thing the people couldn't possibly predict. The return of their villainous exorcists, reborn thousands of years later in the modern world. Determined to not have the same fate as before, the twins resolve to hide their powers from the world and face their most difficult task yet: becoming good people.