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 won't ever leave your side.
Así que no me separaré de tu lado.
así que no me voy a separar de tu lado
Não sairei do seu lado.