Responses
Eh you got a point, with introducing two fated pairs and creating conflict, you may expect more out of this. But the reason why it seems to (in some opinions) fall short of everything that cold happen. But of the message the manga is conveying is the reason it ended the way it did. It presented a conflict, go with fate or your own choice.

I don't think I've ever been more disappointed by a manga than I am with this one...