Amen's manga / #Cancelled(2)

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! (Source: Square Enix Manga & Books) Note: The manga was cancelled after the author passed away.

Ophelia's destined to be the antagonist of the story, persecuted for her wicked ways and lack of magical powers… until she gets a second chance. Aware of her fate, she makes amends for her notorious reputation and gathers allies, including the heroine, who's also her half-sister. How will her destiny change once these former rivals become best friends and she saves the lives of her father and steadfast bodyguard? If a visit from a strange spirit is an indicator, things are no longer by the book! Notices: This is the 2021 version of the canceled 2019 version