Dev has implemented some sort of email verification. Until some hero decides to donate and leak/explain what happens after inputting email, I personally have no idea how the paywall works.
After entering the email, the game compiles and sends a request to the developer's server, where it is verified. If the check is successful, the import.rpy file is downloaded with additional scenes / unlocking the gallery / cheat (the gallery can be opened manually, and you can make your own cheat). Therefore, even if you intercept or change the verification method to "any mail", additional scenes will not appear, since they are basically not in the censored version (there is a check for the presence of a scene - if there is none, a window opens asking you to subscribe). Therefore, it makes no sense to change variables to KAGE/ANBU, etc.
therefore, we need to:
1. the person who has import.rpy.
2. Change the supporter_scene variable to True.
With this, we don't even have to enter an email.