In a world ravaged by unending conflicts between humans, spirits, and demons, the Demon King of Tyranny, Anos Voldigoad, reincarnates to bring about peace. However, after two millennia, his descendants' negligence has led to a regression in magic. Upon receiving an invitation to the prestigious Demon King Academy, dedicated to finding the reincarnated progenitor, Anos decides to enroll. To his surprise, his magic levels surpass all expectations, marking him as an outcast due to his overwhelming power. Determined to prove his identity, Anos embarks on a journey to claim his rightful place as the school's founder, defying the odds and challenging the demon hierarchy.