That's a very good question cause according to Chapter 19, he's supposedly engaged, but it is yet to be announced. So it will be interesting to see how this story goes
Spoilers
It's not his child and the crown Princess is already pregnant so it won't change the outcome whether ml and fl get married or not
Ohhh but does Leona know the child wasn't biological?
Not at this point of the story but she will later
Wait so if the crown prince is the ML, and if him and Leona had a child then would the child be the original heir Leona wanted to protect and was the reason for her turning back time?