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!
Promise to choose me, and I'll stop 
gambling and even leave the dorm.
Si me eliges como rey sustituto,
Si me eliges como rey sustituto,
Prometa que me escolherá e paro
 com as apostas e até deixo estar.