"I have decided not to expect anything from you anymore." One day, Norman is told this by his father and is kicked out of the house. There was no way around it. Because Norman could not use magic at all. However, Norman's fate changes drastically when he encounters the Grimoire "Ars Goetia". This grimoire was used to summon 72 demons. The demons summoned by it, however, bring about a shocking revelation to Norman. Yes, there was a reason why Norman could not use magic.

"Who would want to become the Demon King?!" In this world, social status is defined by supernatural abilities called [Blessings] bestowed by god. Born as the daughter to a ducal family, [Sheena] was someone that would've had a high status, but... for some reason, she was born without a [Blessing] and was oppressed her entire life. She hated the world... She hated the humans... And in the midst of her despair, she was granted a [Blessing]ーTo become the [Demon King]. Trample on this world, and all of humanity.