魔王学院の不適合者~史上最強の魔王の始祖、転生して子孫たちの学校へ通う~

In this compact four-issue manga series from Square Enix (2018–2021), the story follows the reincarnation of the Demon King of Tyranny, who enrolls in a school for his descendants—only to be labeled an "unfit" student. Written and illustrated by Suu Minazuki (known for The Misfit of Demon King Academy), this adaptation distills the original light novel's premise into a tight, action-driven narrative. It matters as a concise, self-contained entry in the isekai fantasy genre, offering a streamlined take on the clash between an ancient, all-powerful ruler and the modern world he inadvertently disrupts.