Number Four of the Ten Great Nobles, his nomination by Volja came as a great surprise to influential demon realm as he is considered plain, unassuming and has mana reserves not commensurate with the other Great Nobles. He is widely recognised as Volja's lackey and never acts independently. Volja learnt about the true nature of Karkel's artefact and killed him repeatedly until Karkel relented and agreed to serve. His nomination as a Great Noble followed soon afterwards. Karkel never asked to be a Great Noble and was happy to live quietly in a remote village repaying a debt of gratitude to his relatives. Karkel's artefact, 深淵の歯車, has the ability to reverse time. Unfortunately for Karkel it only activates at the moment of his death and only reverses time to the point prior to his cause of death. Armed with this knowledge he can avoid death on the battlefield by "dying" countless times and using the knowledge gained to live through battles. Volja uses Karkel as a scout and battlefield adviser, relying on him to read the enemy's next move and to counter appropriately. Karkel remembers the pain each time he is killed, so he desperately wishes to leave his state of servitude. When Fabio was rejected from serving under Karkel, there was a long line of potential hopefuls despite Karkel's subservience to Volja's cause.