It's a fun game. A slight oversight where you can beat the game and it doesn't generate a new game plus where you can access the gallery.
I went through and beat the game on a run with no defeats so no H events so there wasn't a different result.
Lastly, there's a locked door at the final boss room. It seems unnecessary because you can't continue once you win the game. I opened every chest in the game so I'm pretty sure I didn't miss a key.