The Xie family has five children, and Xie Xingzhu is the only daughter. She's been the apple of the family's eye since childhood. Then one day, the daughter of Xie family's eldest uncle shows up with a DNA test, crying that she's the real daughter. She accuses Uncle Xie of deliberately switching them and says he beat her from childhood just to get revenge on Xie Xingzhu's parents. After the identities are switched and a series of events unfold, the Xie family can't face Xie Xingzhu, so she leaves home and lives on her own. Then she suddenly wakes up one day to find the whole Xie family has changed. They fuss over her and give her whatever she wants. Even her nominal fiancé keeps finding excuses to show up. Xie Xingzhu is thoroughly confused.
The presentation is pretty good, but I don't want Takeran and the heroine's twin brother to be a couple.