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!
a promising youth like me slip away!
jamás pasaría por alto a alguien 
tan prometedor como yo!
no pueda pasar por alto a alguien 
tan inteligente como yo!
não deixariam um 
prêmio destes escapar!