About

One day, demon children arrive in the human world to compete for the throne of the Demon World alongside human partners. The demon children engage in this battle for kingship using their own unique spellbooks and their human partners. For these children to cast spells, the strong will of their human partner is required. As a human partner, you must draw out the demon child's power through the spellbook to make them the King of the Demon World. A demon child is sent back to the Demon World if their book is burned and destroyed.