this game is definitely the best JOI game i have ever played, i do have some suggestions (you can just ignore them if you want)
difficulty system, i played this game a few times and i confess that sometimes im up to a shorter session, so a easy mode where you gain more points than the usual would come in handy, the opposite would also apply to a hard mode, although, the latter already has a solution which is getting the higher point characters, but still
a option to turn off the music, its not bad music, its just kinda gets repetitive when you play the game for so long
and one that i think would be a killer thing to add, but probably wont be added for budget reasons is voice acting, i confess that sometimes i have trouble reading the text when i get "lost in the sauce" (for the lack of a better term) plus having an actual voice read the text would definitely be very stimulating (and maybe not many people would mind the text being slow)