ML was an 8th-class magician and long-time friend of Emperor Ragnar. His only wish at the time was to return to his hometown and atone for his sins. But the emperor felt he was a threat and that he had too much power, so he killed him. After being betrayed by the Emperor ML stuck himself with a dagger engraved with a time magic spell and was reincarnated 30 years in the past.
The Return of the 8th Class Magician