Dragon Tamer - Chapter 444 - 446: There Must Be a Demon When Things Go Awry

In the eyes of outsiders, Yan Ruxu’s conditions are extremely good: good looks, high education, a high salary, and a high position, but there is a fatal flaw: she is divorced, with a three-year-old child. Yan Ruxu didn’t care what others thought of her, she just wanted to raise her son well and live her own life.

- Description from Novelupdates

Various monsters came out from mysterious gates that appeared all over the world. Along with this incident, humans also gained power and were called hunters.

Radmilo Laiv is a hunter with the power to control time. He spent his life serving the world government and becoming a hero. However, he was killed because his power was considered a threat to the government.

It was a stroke of luck that Radmilo could return to the past because of his powers. In this life, he doesn’t want to be a hero anymore. Should he play the evil role and become a villain?

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