Seasons & Episode
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!
Sytry remains at the academy to try and convince William to choose him over Dantalion. Fed up with the situation, William orders Dantalion to leave and never come back. Will he regret his decision when the academy is besieged with ghosts that very night?
It's family visiting day at the academy, but with his parents long dead and Kevin treating him like a stranger, William is feeling down. His mood quickly changes when the father of fellow prefect Swallow invites him to dinner, and the boy himself insists he wants William to "meet my parents."
Dantalion and Sytry must return to the netherworld when the four Kings of Hell come together for their annual summit. None among the crowd realize that the Grand Duke Baalberith has secretly sent a horde of demons to the human world to kill William, the Elector who inherited King Solomon's soul.
The archangel Michael appears before Kevin, informing him that he has come down from Heaven to judge the inheritor of Solomon's soul. For his part, William is busy defending his position as top in the class from a student named Elliot.
Michael moves to deal with William once and for all, while Dantaltion and the other demons are called back to repel an attack by Heaven's armies. Leading the charge is none other than Jeanne d'Arc, the unrequited love of Gilles de Rais. With Heaven closing in, it seems William is doomed to Heaven's ecstasy...or death.
Hoping to win the prize for best event at Stradford's school festival, Wlliam orchestrates a culinary showdown between Dantalion and Sytry's respective butlers, Baphomet and Leonard.
Seventeen-year-old William Twining takes pride in his lineage as well as his devotion to modern science. When he learns that his family has gone bankrupt, the pompous noble is faced with the reality that he can no longer afford his tuition or the lifestyle he is accustomed to. In a desperate search for valuables in his manor, William discovers a hidden room and accidentally summons the arrogant demon Dantalion, the Grand Duke of Hell.