They Called Her Simple, She Hit Back Hard

Xu Xiyu wants to be treated as a daughter by the Xu family. She was born missing three souls and seven spirits and has been slow since childhood, and her parents favor her sister. Five years ago they talked her into confessing to something her sister had done, and she served the sentence. She stayed slow, but in prison she took a master and learned to fight. On the day she gets out her parents decide she is a stain on the family and make arrangements to put her in a psychiatric hospital. Li Yanning, heir to the wealthiest family in the capital and the man promised to the Xu family by an engagement, comes to find her instead, and takes her straight to register the marriage.