Genius Mage in a Cultivation World

[Layn's life was relatively simple. Married to a princess, working as the top archmage of the country... Everything would be great if he never learned that his wife was actually cheating on him!, Instead of getting his revenge, he put up with the humiliation. For three long years. Three long years he needed to prepare for what would go down in the annals of history as the greatest revenge ever!, That is if his actions didn't aim at rewriting the history in the first place...]