Hey! I played the demo!
So, first and foremost, I have to say I was amazed with the game: the artstyle was beautiful, the GUI was splendid, the music carefully picked, the voice-acting excellent, and the implementation of the sprites was certainly my favourite part of this game (it was dynamic without making me dizzy, so great)!
Regarding the story, I enjoyed it a lot! It was full of humour, which I appreciated, but I'm genuinely interested in the scenario around Snare! I also enjoyed the interactions between Teresa and the actual main couple of the otome, as they were funny but, even in general, it's always neat to see friendship in otome games! For the love interests, I had a lot of fun interacting with them freely! I didn't feel constrained at all and, like Teresa somehow, had fun going wild (I had a lot of fun bullying Edel).
Teresa was a great protagonist too! She was amusing and adorable! More seriously, her whole anti-"not like other girls" attitude made me laugh, her interactions with Eric were surprisingly sweet but also very funny! Finally, the set-up for her being a "thron amongst roses" was very well-done
Overall, I really enjoyed this entry! Good luck with the development!
EDIT: Sorry, I completely ignored the questions fertebfr
1) I think I'm on Vincenzo's, but I really find both of them fun... I guess I just had too much fun bullying Edel...
2) I do think the whole "proposal" scene was fun, and yet, I enjoyed seeing some brotherly support!
3) Sure am!