My Boss, My Baby Daddy

Isabella Sterling was raised by a butcher and grew up killing pigs. She is the true heiress of House Sterling, and when she comes back to the manor everyone there knows where she has been and expects her to make a fool of herself. The false heiress goes further than that and tries every way she can think of to kill her. What none of them know is that Isabella is the Guardian Saintess, the strongest woman cultivator in the Nine Realms. She buys a slave who is written off as worthless. He is the Ascendant Lord Oracle, who reached the Divine Realm, and the Nine Realms both revere and fear him.