well,
Pretty sure the director and Aqua knew this and made sure to hide everythig.
He is a narcissist serial killer, pretty sure he was confident no one ever would know he was involved. Aqua's Role from begining to end was always hidden so.... yeah pretty sure he doesnt have a reason yet to interfere.
Realistically, the script would be NDA, but they WOULD have to show it while scouting for the roles, and finding investors/exec producers, etc... hence why I'm sceptic on how have the dad not caught win AT ALL about this project having him potentially be a character as Ai's mysterious partner who preggo'ed her.... like come on, he knows how Ai's theoretically an asexual, and he' he only partner she ever had right.... so he's supposed to be intelligent enough to cover all his track's but not being alerte by a potential exposure...?
I do have high hopes/belief in Aka's writing, but at this point, I just hope it's not TOO suspending disbelief...