Return of the 8th class Magician

Return of the 8th class Magician is a MangaManhwaManhua in EnglishRaw language Manhwa series is written by Updating This Comic is About
Its been many years since Ive bloodied my hands for the United Empire and its emperor Ragnar I wanted to return to my home town and live a quiet life as if to repent for my sins
However
You are a great 8th class magician who is able to overthrow me and the empire at any time
How could I let a monster like you stay alive
After being betrayed on the verge of death by Ragnar who was my friend as well as my Emperor He stabbed my heart with a dagger that had time magic applied to it
The redemption I want is to put everything back to its place