I’m Not Going to Be Bullied By a Girl - Chapter 505 – Crime Scene

As a promise, he went out into the world as an assassin. 3 years later, after becoming the Supreme Assassin, he gave up on everything he had and returned to the ranks of ordinary people. But one day, Kismet, a mystical game created by the National Research and Development had appeared.

Enigmatic hands, spectral frame, and one cunning strike just like the swing of the Grim Reaper. The Supreme Assassin takes on the mystical world, and how his legendary tales sets off, progressively ascending the altar to becoming the best.

- Description from Novelupdates

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

Due to unfortunate circumstances, “Ari” Ariel Matisse lived in the slums of Los Angeles, also known as Skid Row.One night, on his way home, he was killed while witnessing an old man getting beaten.When he woke up, he had been thrown into a dumpster, and a strange screen flashed across his eyes, and no matter how he looked at it, it reminded him of a status window in a game.[System Integration Complete!][Become a Global Music Superstar!]For some reason, he gained a system that wanted him to join a survival show and become a globally famous idol.If he refused to complete his given tasks, he would die.But if he succeeded, he would have the money and power to change his life as well as get revenge against the person who killed him.P.s. this story is kind of a love letter to LA and the amazing blend of cultures (American, Asian, Hispanic, African, etc) that can be found there. I hope you all fall in love with the area as much as I love it.

Gawain is dead and was transmigrated, but there was a slight problem during the process.
After floating for more than a hundred thousand years on a different continent, he felt that he might need a body to become a complete transmigrator, but he did not expect that…