I'm having a great time with this game. The art's beautiful and the story and character interactions are really fun. Did AI help with the story as well as the art? It looks like you must have done a large amount of research to make this. I liked how in the RPG, when Sylvia was confronted with a with a person even more pompous than her, she put them in their place pretty quickly XD
Some observations: One minor error -- in the English tutorial, Patti introduces herself as Petra. Second, I had to refresh the game to watch the opening because I accidently clicked during it. You might add some text in the corner saying "Click to skip opening" so people know how to skip (or not skip) the opening.