Femme Fatale First Daughter

Well spoil us!! 

Well, I have been reading on Tapread upto chapter 580.. and currently all I know is that Princess Mingzhu and Mo Xuetong's mother are sisters. The ML finds it out and confirms the facts with MC after marriage. But not completely clarified yet as MC currently only knows that her mother, princess Mingzhu and Princess Shauanglan ( Bai Yihao's mother) are all daughters of King Jin.
Princess Mingzhu still does not know that MC knows she is the granddaughter of King Jin. 

In which chapter does mc marry ml? 

How many chapter does this novel have?