In a world where humans and demonfolk are constantly at war, the all-powerful demon lord Anoth Voltegourde tires of the endless bloodshed. He proposes a truce with the hero: divide the world into parts to separate the two races for a thousand years. Voltegourde then allows himself to be killed with the plan to reincarnate two thousand years in the future, hoping to be born into a better world. He indeed reincarnates in a more peaceful era, born as a baby of two loving human parents. He receives an invitation to enroll at Demon King Academy, whose task is to find the reincarnated demon lord as it is known that the reincarnation will occur this year. With his unrivaled powers, Voltegourde fully expects to be instantly recognized. However, he is however promptly deemed "unqualified"; over the centuries, the tales about his personality, deeds, and even his name have been so distorted that there is not even the slightest resemblance as to who and what he once was. While annoyed, Volte