As a Villain, He Directly Marries the Male Protagonist's Sister

If I become the villain prince, I will directly marry the protagonist's sister! Brother-in-law, show me some respect! Ahhhh! How can I attain Mahayana enlightenment without a golden finger? Fortunately, my father is the Yuanying Emperor: the Great Qian Yuanying True Monarch, who holds power in the world, controls the spiritual energy of the nine heavens, suppresses evil spirits, and drives away evil spirits! Looking back on the past, Prince Lu Ling has stood at the top of the immortal world