The Master of Clearheadedness

The heroine transmigrates into a story about a real and fake heiress as the real heiress. The fake heiress is a white-lotus female antagonist, while the real heiress is a cannon-fodder character. After transmigrating, the heroine discovers that this is a world where humans and ghosts coexist. The original heroine is a master of metaphysics, and she and the transmigrated heroine will eventually love and fight each other. Both are money-loving types, so their business interests will come into conflict.