This novel was called 'Qiong Qiong's Song of Qing Qing'. After the female protagonist Qing Ge was hit by a vase, she traveled to ancient times and became the eldest daughter of the Supreme Court. In order to survive, she lied that she had lost her memory, but it caused many incidents. Later on, she was ordered to marry into King Huai's residence, but this King Huai did not trust her and needed her to investigate her identity, which made her suspect her. I hope you like this fairy's recommendation. Muah ~😗