Thank you for the kind words, honestly I'm impressed you've managed to use 50 save slots and still need more haha. You should probably start to overwrite the oldest saves you have to continue infinitely, there's no missable content in the game so you don't need to worry about anything like that. It's not one of those 'choose a route' kind of VNs
I will, and have been re-using old saves... I used up 50 mainly because I like everything organized, for EX: Every event, I save... Every-time I take a break, I put a save. Just a tiny bit addicted to saving apparently. Honestly forgot there was a gallery, and since there's no routes like you said, I shouldn't worry about saving like other VN's.