MTL - Reborn Mistress’ Scumbag Manual - Chapter 3 key

Talismans are a part of cultivation and what a better way to get into cultivating than to have the three top sects send talismans around.The “good” sect sends a talisman to make someone extremely beautiful.The “bad” sect sends a talisman to make everything around the person turn into a death sentence.The “neutral” sect sends a talisman of amplification by accident.What happens to a woman who has just gotten pregnant?Everything hits her belly.Join in as Rex who is in the fourth mortal realm gets a second chance to cultivate.

June 15 of the year 2010, the third awakening happened. Several smaller worlds had returned to connect with the main world as living beings of different races started to appear and some people managed to connect with the origin and gain control of various powers: control of fire, of water, of wind, of air, and of earth... In the midst of all these confusions, towers that gave unimaginable powers began to appear in all corners of the world, where those who already had powers could upgrade and become more powerful or even those who did not have powers could receive powers through tests of the tower. And because of these towers, conflicts started to happen in all corners of the world by those wanting to monopolize these towers.

Luan Dimas was betrayed by one of the people he trusted most. However, in his final moments before being killed, he was transported back to four months before the third awakening that started the apocalypse on earth. Being a man who lived for a thousand years and had accumulated several techniques, he now had a new chance to correct some of his early mistakes. Luan decided to make the most of this new chance that the heavens had given to him.

Transform into Divine Dragon and dominate the world!
He is the only Divine Dragon in the sea who founded an underwater Dragon Palace.
With Crawfish Soldiers and Crab Generals as his followers, wild sharks and gigantic octopuses as his subordinates, he is the dragon that rules the city.

- Description from Novelupdates

He became a teacher at the best magic academy in the empire.
….For being mistaken for someone else.