Yet, she knows, she can't now, she is still young, only three years old. Even if none of these people know that her soul has been replaced, they'll, in the end, attribute all faults to Tang Zhinian, accusing him of not teaching Tang Yuxin well. Quite possibly, she might get taken away by Sang Zhilan again, returning to the fate of her previous life.
In this lifetime, she will absolutely not leave the Tang Family with Sang Zhilan. She wants to follow her father; she wants to ensure her father leads a good life, in a big house, instead of providing labour in older age, supporting her loser daughter, paying for her daughter's university education and her daughter's house. But neither the house nor the daughter exists anymore.