Lin Xi transmigrates into the body of a fake heiress from a wealthy family. To avoid a tragic ending, she does her best to play the vicious supporting character. But when the real heiress, Su Qingmo, returns, she sees right through Lin Xi’s goofy, cowardly nature. Instead of crushing her, she protects her. She takes on weirdos, deals with fake sweethearts, and exposes conspiracies; Su Qingmo is powerful and level-headed, sweeping through every obstacle. Lin Xi promptly decides to lie flat and cling to her big sister’s coattails, cheering her on every day: “Big Sis is the best!” Su Qingmo smiles gently. “Of course I’ll spoil my little sister.” See how the gentle real heiress protects her sister with her strength, while the goofy fake heiress lies flat and coasts through life.