Yu Fei becomes best friends with Ye Lin, a rich heiress. Ye Lin discovers that her fiance is in love with Yu Fei, who once saved his life, and misunderstands Yu Fei, then takes revenge on her. Later, Ye Lin learns that Yu Fei is her paternal half-sister, and that their lives were switched because their mothers had exchanged them. Yu Fei is forgiving. Though Ye Lin struggles to let go of her glamorous life, the two join forces to protect their family's honor when a crisis strikes. In the end, they become true sisters and find happiness.
