Y'know, playing this, two things surprise me at not being implemented yet.
The first is allowing you to choose how characters are related to you. I've played a couple of games like this where you could type in how they're related to you. Town of Passion is one of them, IIRC. If you typed that someone was your aunt, it'd say so in parts of the game where it's mentioned.
The second is an auto-updater built into the game. I've seen this in one other Ren'py game called Starship Inanna. You can download updates through the game, rather than redownload the whole package.