Vicious female partner is five and a half years old

Xu Yuanyuan is a little boy who was spoiled by the whole family. When she woke up, she came to a strange place.In her head, the system said that she was a fake daughter, and the real young master had to be kicked out of the Xu family before she could see her parents.But... Master Zhen is a good-looking brother. — Xu Yan, who had struggled in the quagmire for half his life, was reborn.The first thing to do was to go back to Xu's house and deal with Xu Yuanyuan who had been bullied by him in her previous life.but...