Y'know what? I'm absolutely down for a twist like this. Maybe this is going to lead into the serialization? It's rare that you see what the isekai'd person left behind, and in a way, it's still 'another world'. This is going to be EXTREMELY interesting if the daughter can make direct contact as the heroine with her father- if there's any 'manual input' names or titles or anything, that'd be a good way to let him know- and then they can tag-team on what to do from there.
Absolutely fascinating.