Reborn Again, You Say I Have to Rely on the Villain to Survive?

In her previous life, her half-sister and that scumbag used her for everything she had, then kicked her to the curb. Reborn, she vows not to be foolishly used as someone else's stepping stone ever again. Her stepmother, her half-sister, the Crown Prince? None of them can compare to the powerful official she's got her eye on... This official is no ordinary man. He's a ruthless killer, merciless and feared by everyone at court. “Dear, people outside say that me marrying you is like a flower planted in a pile of cow dung...” The powerful official flies into a rage and orders, “Kill everyone who's been calling me cow dung!” The people about to be killed cry out, “Lord Qi, we meant that you're the flower!” The powerful official: “Dig up their ancestors' graves!”