Gods and demons fight an endless war, using the mortal realm as their battlefield. Like most long-standing grudges, the original reasons no longer matter—hatred has become a way of life. Yet, it is prophesied that one will rise to restore harmony between gods and demons. Enter Raenef... heir to a line of demon royalty, he is hardly fit for courtly life. The demon king assigns Eclipse to serve as his tutor, to shape Raenef into proper demonic form. The two embark on a journey of discovery and are soon joined by a human knight and a god-blessed priest.