MTL - Dressed As a Consort In Ancient Times - Chapter 48

Finn travels to the timeline after Avengers: Endgame and obtains a system that hides one's own strength while allowing him to grow even stronger!However, he soon discovers that the system's prescribed hiding place is actually Westview!Before long, Wanda will seize control of the entire town, plunging countless people into pain and torment.Fearing exposure and determined not to give up halfway...Finn decides to act first—conquer Wanda and resolve the issue at its root.And thus, he embarks on a road of no return.Here's the cliched NOTE : English is my 3rd language so I'm not proficient in that , so if there are any mistakes please point it out to me

An accident let him have a special ability to turn back time up to 1 minute. When he said the wrong things in front of his leader, he was able to return back to 1 minute before to correct what he said. During jade stone gambling and there was no jade inside, he turns back time to pick another stone. When the woman he likes met an accident, he can return back to 1 minute before to save her…… A small fry’s rise through the ranks of the government service starts……

- Description from Novelupdates

A normal office worker, Toru Minasuki, was swallowed up by a dimensional fissure and reincarnated into a different world. Upon reincarnation, Toru was given a [skill board] by God. Make the most of it to acquire all the necessary skills! Even though he is an “inferior person,” he’ll make his way to the top!

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