Description:

Abel was a genius magician who held immense power in a world where the color of your eyes indicates how powerful you are. However, the strength that came with his amber eyes was so great, even his comrades looked at him with fear and contempt. He therefore decided to transfer his soul far into the future, hoping to find a paradise that accepts him. He would soon find out that people’s attitude regarding his eye color did change, but not quite the way he had imagined… (Source: MU)

Description:

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)

Description:

There was a mage called "The Lone Demon King" at the frontier. He was just a creature that never grew old, but he was loved by the villagers as something of a guardian deity. However, he was destroyed by a magic organization that sees his existence as dangerous. 200 years later, he is reincarnated as the second son of an aristocrat and obtains the strongest magic power. "Let's pretend to be a human this time..." However, being a human lover, he didn't particularly think of revenge and has decided to pretend to be human in this life. In his past life, he was the guardian deity of a region, and in this life, he's a local aristocrat, but he does not know common sense. He doesn't know how to take it easy. As the second son of an aristocrat, he is loved by his family and friends, and while he is regarded as a master of magic in the magic guild, he becomes an "Immortal Mage" behind the scenes. (Source: Kadokawa, translated)