I don't mind the grind to get girls so much. There isn't a ton to do in this game. The grind to max them out is definitely hamster wheel material. I have 5 girls who can be 5* and I'm absolutely dreading trying to max them out. I suppose the logic might be that if it's too easy to max them out there isn't enough content.With heavy grinding required, you can't know when you'll get the girl (and random is always bad, as I said before), plus it takes months to maximise her, while other girls keep piling up. This is the hamster wheel effect that kills any will to keep playing a game.
They need to actually start making events with a storyline of some kind.