What Do You Mean My Legacy Is Gone?

Yesterday, my father died, maybe the day before yesterday... I don't know if I have lost my memory or if it's the guy who took away the body of Liu Xiang, a rich young master... Instead, he lived as a good-for-nothing young master for a year. I thought that after my father died, my life would not change much. But what does it mean that all the inheritance is given to the sister who died halfway? I still have to pass my sister's test before I can get the inheritance? The biggest problem facing Liu Xiang now is... Who the hell is my sister? Who is my sister? Where can I find her?