I just got the best ending, after getting all requirement.
Just here to say that I'm tearful and full of joy. This VN is surely one of the most interesting I played, and the vault system implanted is interesting. I was just lucky enough so that when I reached end A for the first time, I had 11 of 12 requirements, but the feeling of completion is still vivid.
Anyway, chef kiss Grizz, for this surely has been one hell of a ride, and a very emotional one. So thank you for the story and the time you put in it, the wait was very much worth it and your ability at handling the timelines is nothing short of amazing.