The Real Daughter Came Back, but She Insisted on Giving Her Boyfriend to Me

The Heroine Is the Fake Heiress

The female lead was originally the fake heiress. Then the real heiress came back, and the female lead returned to her birth family. At first, her birth family's brother wasn't very nice to her because the real heiress had told him she didn't want to come home and things like that.