Thank you so much for playing our game and for all the compliments! We're really glad to hear you liked it. :D It means a lot to us!
To answer your questions:
1. Yes, most otomes have good - neutral - bad endings where you die in LI dies in the bad ending or something of that sort, but we felt that this type of system did not suit AIRIS's story. To very briefly explain, the writers of AIRIS thought that it is important to give players the freedom to make choices to influence the story in a game like AIRIS where the themes of the story revolve around freedom and choice. If there's a bad ending, then that means there must be some sort of right vs wrong choices, where if you pick the wrong choice one too many times, you end up with a bad ending. In our opinion, this delineation of right vs wrong choices reduces the liberty one has in making choices, because you can't really just pick any choice you want; there's a right choice that you should pick. That's not to say that this system is bad or anything — lots of otomes and visual novels have done really well using this system, but we just felt that this system did not fit with AIRIS and the kind of branching story we want to tell.
2. No, there is no screen in game that displays your hidden stats. Your stats are not displayed in game at all. As said above, we want players to feel free in making the choices they want in AIRIS rather than try to manipulate the stat numbers to what they want, and there are walkthroughs if you want to get different endings, so we did not want to show the hidden stats to players. We apologize if it has caused any confusion or inconvenience for players.
We hope these answers are satisfactory for you.
Thank you again for playing our game and leaving a comment! :)