The Disgraced Prince Picks Up a Catgirl as His Master

"You unfilial wretch! From this day on, you are forbidden to bear the surname Xuan!" I was a prince of the empire, a peerless genius, but my stepmother framed me, stripped me of my cultivation, and demoted me to a commoner. For my younger sister, and for revenge, I must start over! I will use every means at my disposal to grow stronger. A catgirl master? Teach me the Art of Three Pure Ones! This time, I will reclaim everything that was mine from the start!