Loving this story so far, especially the setting and mood. I suppose my only concern is that, with the route system, it seems like the story is going to be painstaking to write.
However, that's not exactly a gripe because once you get far enough down the line of updates, having such considerable variation in each route is going to draw new readers in to go through every single one (I'm sure current readers like myself plan to keep up with every route as they come out as well). In VNs with 'romance' routes, even ones (like this one) that are more story than romance, I typically stick to my favorite characters right off the bat, but here I'm going to have to test every variation of choices to enjoy everything this game has to offer, and that's a good thing