Really? All the other characters get much less screentime, have the story finish early and are all curious about his relationship with her instead of each other. They have the linked backstories and childhood marriage promise
and she gets the final ending. Which, incidentally, had a 'route' that was quite a bit longer than Shiratori's at the least. Also, the other girls all vanished after their part in the story was over. That kind of annoyed me and is one of the things keeping me from liking it quite as much as Sharin no Kuni.
So, yeah, it's good that Haru is definitely capable
of carrying the story. Definitely up there with Arcueid in the favorite heroines list located in my head.
I wonder if Yuki originally had a route and it was cut for time concerns or something? Or for the better reason of 'where the hell would this even fit in?' Attractive, expresses interest in Kyousuke, rather interesting... Felt funny to me.