"Having lost his sole retainer, Dantalion throws himself into a battle to succeed Lucifer. But the appearance of a powerful new ally at his side foretells a risky new tactic. With William distracted by the ongoing conflict between his scientific beliefs and the existence of the supernatural, the battle for Hell takes a demonic turn"--Back cover.

Graphic novel. Text reads from right to left (for manga). Originally published : Japan : Ichijinsha Inc., 2016.