Dantalion, one of the many candidates for Lucifer's throne, decides to live in the human world an attend William's school and lobby the young noble to choose him as Hell's ruler, but he gets more than he bargained for when William's friend Isaac accidentally summons one of his competitors!
I knew you were special, 
but to think you're that important!
Sabía que no eras una persona corriente, 
pero la realidad es mucho mayor que eso.
Sabía que no eras una persona corriente, 
pero en este caso la realidad supera a la ficción.
Sabia que você era especial, 
mas tão importante assim?!