honestly i was really confused after 3 games and then i continued playing to understand and get used to it.... but seriously it's kinda hard to understand and that's a problem until you really get to know the characters and learning their routes as such...
since there were so many complicated stuff the guidebook to the game that's located in the 'about' section might help a lot it talks about stats and the lessons and what you gain as well as the routes in detail it's def a time saver