So I finished the second demo, and I gotta say it has a lot of improvements I mean I already loved the game just from the first demo you released!
The one thing I have to point out that doesn't really fit is the newly added 'fan-service'. I get it's for us to get a feel of what the relationships are going to be like once you start the route of a character BUT I feel like some of them didn't fit the characters, are out of place or just happened too soon, (Aiden and the Twins). Jun's justified because they literally share history and were a couple, but Rei and him making out without any care in the world in front of a teacher just seemed a bit surreal. Also the twins in the first demo were more mysterious and interesting and Griffith seemed more distant and cold which was his appeal, in this new demo he is just thirsty lol. I hope on the full VN we'll get to see him develop and have more depth.
My favourite characters so far (It can change in the future) based on the new demo are Rei (of course), Minami, Aiden and Leo. (No order in particular but I may be slightly biased towards Minami)