Maou Gakuin no Futekigousha

After two thousand years, the fearsome Demon King has finally been reborn! But when he enrolls in an academy meant to train future demon lords, his abilities are shockingly labeled as “incompetent.” Arnos, the Demon King, once wielded power so great he could annihilate humans, spirits, and even gods. After enduring endless wars and chaos, he grew weary of the bloodshed and yearned for peace. To escape the cycle of violence, he chose to reincarnate into the distant future.