Wait if mc marries the Prince will she become empress or will she become the Head of the f...

I think if her dad marries and would get a kid with his future wife it will likely be the heir (づ￣ ³￣)づif the mc marries the prince and becomes the empress and if not then she's gonna stay as the heir ╮(￣▽￣)╭

I can give a spoiler for you if you want

Pretty please ε=ε=(ノ≧∇≦)ノ