Manga I Tamed A Tyrant And Ran Away

Thanks to divine grace, I was able to live my life anew. Before that, for four hundred years I was the sword of the empire. Now I have one goal - to destroy the hated empire. For this I found a young prince, whom I began to teach various tricks of government. I helped him conquer the country and become a tyrant in it, after which I disappeared. He began to look for me throughout the empire, because he could not understand why I ran away from him. And my cunning plan was just beginning to work ...