I'm glad you enjoyed the game! The start button lets you load games, or start new games, so I don't think a separate load button is needed. You can delete saves (the red button next to each slot) if you want to start a new game in one of the old slots.
I did want to load exactly where you left off, but because of the way scenes are handled, it's a lot more complicated than it sounds (simple for some scenes, but some scenes have battles, events, and variables that are tough to store/load). So, I just tried to make sure there were lots of save points, and you can skip pretty quickly to choices by holding the skip button.