This game has a lot of potential. I think the story could be a lot better but I do love Minami and the art is fantastic. What would really help the game though is to clean up the exploration a bit. These types of games thrive on the little repeatable interactions that break up the monotony of unlocking the bigger scenes.
Finishing the Stay option on the subway (and maybe increasing the chance it happens) would be huge, and others like it would add so much. Like a Student at the school who will pay you a little bit for services, or the chance to get groped by a customer at the convenience store. It would make revisiting these locations over and over a lot more exciting