After I Regained My Memories, Was I Actually the Fake Heiress?

【A savvy heroine + Not a naive, sweet girl + Male lead included + Lighthearted, mildly funny + The heroine gives no one her heart】 Lin Chengsui had always been the one who called the shots in the Lin family. It wasn't until she was ten that she remembered she had transmigrated into this world and taken the place of the real daughter as a fake heiress. Then, for various reasons, she was swept up in the turmoil of the times. See how she lives it up in the harem after being sent away in a political marriage. She refuses to be a dependent vine in the harem. What she wants is the position just beneath The Outcast!