I'm not the biggest nerd when it comes to aerodynamics and the mechanics of gliders. So with how much exposition is used to explain all the details of their work felt a bit exhausting.
Cause of this I only bothered going for the Kotori route which I did like a lot when it was actually advancing their relationship.
I physically popped of during the confession scene which if weird to think back on since I feel a bit luke-warm on the whole experience.