Three hundred years after the world-destroying battle between the Demon King and the Gods, mankind has developed a flourishing civilization, and two powerful professions have been discovered in the civilization of the Demon King and the Gods: the Demon Sword user and the Magic user.
Relying on this power, humans have ruled most of the world. However, the gods and demons never gave up spying on this world. They were waiting for an opportunity, an opportunity to make a comeback from the ashes and destruction.
One rainy night, the killer boy Gray defected from the organization he was loyal to and stole the Demon King's relic discovered by the organization: a supreme magic sword - one of the prototypes of all holy swords.
So the gears of fate turned again, and the boy who longed for power in a turbulent world embarked on the road to becoming a king.
Ahead of him were thorns and obstacles. His goal is the throne where blood and tears are intertwined.
