In a world where there exist a demonic cult who is lurking to ressurect the demons that had been sealed in the great wall between all species, All demons have been defeated and sealed away, each country have the responsibility to supervise and protect the demons corpse. The demonic cult were created as a way for demon to lurk into humans mind, luring them with power and wealth, there the seven sins of the demon had chosen its vessel to grant them a part of their powers to ressurect them. But Lucifer, the demon of pride, see all species as lowlife, decided no one is worthy for him, until the protagonist was born as the vessel of lucifer.