The First Archmage

Avrior was the strongest and the first mage to reach the tier-8 magician, he help his best friend to be the king. After the son took over the throne, Avrior was executed for false accusations of leading a rebellion against the empire, he then wake up in the body of young Harry Walsh, the eldest son of a army commander of the rival empire. Harry now is turning his life regaining his magic and learn swordsmanship to become the first magic swordsman of the world.