Well, the thing is, this game has an interesting plot. Or you won't be complaining about it's progression. So, the developer did much more than a lot of others. Yes, sometimes I also want to see more of the plot related stuff. But author can revile the secret only ones. And apparently, it will be in the end. Too much teasing about it can actually be annoying, when you know that. And I don't agree, that there couldn't be some type of harem ending. The game doesn't punish you for having as much LI, as you want during the game. So there could be an option. Starting to break up with almost everyone right now will feel strange.