MTL - Fairy Tail: Start To Capture the Fairy Queen Erza - Chapter 4 learn magic

Join Lu Yin on an epic journey across the Universe, pursuing the truth and tragedy of his past. This is a world of science fantasy where the older generations step back and allow the young to take charge of affairs. Heart-wrenching separations, terrifying situations, all with comic relief that will leave you coming back for more. This is a world where the other characters actually matter, and are revisited frequently as their own lives unfold. Dotting Lu Yin’s path are monumental feats of kingdom-building and treacherous political situations where he must tread carefully if he wants to get to the truth of his history.

Ye Xiwen was previously only an ordinary university student on Earth, but unexpectedly crossed through into the world known as the Zhen Wu Jie world! In this world, formidable warriors are capable of turning over mountains and collapsing the ocean, destroying the sky and extinguishing the earth! He originally had ordinary aptitude, because of that he received the mysterious special space! Any martial art can be deduced within the mysterious space, other people practice for decades, he only needs a year! So long as he has enough spirit stones, any talents he faces are all floating clouds!

- Description from Novelupdates

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

Ge Xiu is a nefarious star criminal. After being arrested, according to the Interstellar Supreme Law, he will face two choices: either serve a sentence of 1156 years in black prison or enter countless virtual worlds and become a miserable person who is tortured and abused all his life. How much he suffers is how much his sentence can be reduced. Ge Xiu chose the second one without hesitation.

So… The trial surveillance system stared dumbfounded at the Former•Interstellar Most•Wanted•Criminal•Currently•Weak•Poor Ge Xiu in the virtual world, punching the empire, kicking the Federation, overthrowing oppression and building a new world. Then he turned his head to the camera and cried: “I’ve had a miserable life, really.”

“…” The surveillance system that was about to explode of anger: “Like hell I’d believe you!”