Maou Gakuin no Futekigousha: Shijou Saikyou no Maou no Shiso, Tensei Shite Shison-tachi no Gakkou e Kayou

Anos Voldigord was a tyrannical demon king. After eradicating humans, spirits, and even gods, he grew bored of this perpetual state of war and reincarnated with an ideal of peace. However, he did not expect that after 2000 years, his descendants would have been softened by centuries of peace and that magic would be but a shadow of its former self. Anos then enrolled in the Demon King Academy, which teaches all contenders for the role of demon king…