The Misfit of Demon King Academy Manga Series by Shu, Kayaharuka

What if you were the strongest demon king in history...but nobody believed you? A light-hearted action rom-com series wherein the devil is definitely not getting his due.Anoth, the Demon King of Tyranny, has defeated humans, spirits, and gods alike. But even demon kings get tired of all the fighting sometimes! Hoping for a more peaceful life, Anoth decides to reincarnate himself... moreWhat if you were the strongest demon king in history...but nobody believed you? A light-hearted action rom-com series wherein the devil is definitely not getting his due.Anoth, the Demon King of Tyranny, has defeated humans, spirits, and gods alike. But even demon kings get tired of all the fighting sometimes! Hoping for a more peaceful life, Anoth decides to reincarnate himself. When he wakes two thousand years later, though, he finds the world has become too peaceful--his descendants have grown weak and magic is in serious decline. Intending to reclaim his rightful place, he enrolls in Demon King Academy, where he finds that his magical power is off the charts. Literally. And because they can't measure his power, the faculty and other students regard Anoth as a misfit. With the support of Misha, the one student he manages to befriend, the misfit (Demon King) begins his climb up the demon ranks! less

What if you were the strongest demon king in history...but nobody believed you?The demon sisters Misha and Sasha are facing a tragic fate because of a spell cast on them by a mysterious figure seeking to harvest their magical power. While Sasha schemes of a way to bend the outcome to her will, Misha calmly accepts the fact that she will not see tomorrow. Their fate seems all but certain, and the end just a matter of time.. moreWhat if you were the strongest demon king in history...but nobody believed you?The demon sisters Misha and Sasha are facing a tragic fate because of a spell cast on them by a mysterious figure seeking to harvest their magical power. While Sasha schemes of a way to bend the outcome to her will, Misha calmly accepts the fact that she will not see tomorrow. Their fate seems all but certain, and the end just a matter of time...though not if Anoth has anything to say about it! Saving the sisters might take a miracle, but the Demon King of Tyranny will stop at nothing, even if that means going up against the god of time himself! less

What if you were the strongest demon king in history...but nobody believed you?Anoth has freed Ivis from possession by the false Demon King, and peace has been restored for the time being... But it doesn’t last for long! New transfer student Rei joins the class at Demon King Academy Delsgade and immediately makes a splash with his superior fighting skills... moreWhat if you were the strongest demon king in history...but nobody believed you?Anoth has freed Ivis from possession by the false Demon King, and peace has been restored for the time being... But it doesn’t last for long! New transfer student Rei joins the class at Demon King Academy Delsgade and immediately makes a splash with his superior fighting skills. Rei's swordsmanship may be exceptional, but will it be enough for him to win when he challenges Anoth to a duel? Or is it time for the Demon King of Tyranny to school his fellow student? less