This was quite fun! I enjoyed the twist at the end especially. It's a nice, well-paced story, and the voice acting was particularly good!
I did notice one small bug, though. Trying to access the save menu during the warning screen you get before one of the minigames (the game where you have to type individual letters quickly to escape the garage) threw up a generic Ren'py error screen, and then skipped me right past the minigame, so I didn't have to complete it.
It wasn't a gamebreaking bug (it actually wound up helping me lol), but I just thought I'd point it out.