Superstar From Age 0 - Chapter 452:

Kain may not have been very popular, and his life felt dull, but everything changed instantly. When he wasn't at work, he immersed himself in reading and watching anime. Then, the unexpected happened.He woke up in a new world, confronted by a blue interface hovering before him. Join the journey to see how Kain will adapt and thrive in this extraordinary reality.-No Harem- Noobie Writer.

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

Lost in the vast expanse of space, trapped in the icy confines of a metal spacecraft, I was forced to face a horrifying truth.That I had transformed into a ruthless alien predator in a space survival game.