I don't get the obsession from the crown prince for the MC. They did met when they were children and is mad that MC can't remember?
He’s also the only one immune to the prince’s magic sight thing
And why marriage when he can't get pregnant?
Because it is not revealed yet. Some korean stories tends to keep it hidden until the second season.
I don't get the obsession from the crown prince for the MC. They did met when they were children and is mad that MC can't remember?