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!
but until recently he had to be
home schooled due to poor health.
Al parecer, debido a su frágil salud, 
había sido educado en su casa hasta ahora.
Al parecer, debido a su frágil salud,
hasta el momento ha sido educado en casa.
mas, até pouco tempo, precisava aprender 
em casa devido à sua saúde debilitada.