arrgghhh i wasnt gonna write anything but the more i think about the more it annoy me.
honestly BaLa character is the flaw that disturb the flow of this story. when i remove BaLa from the equation it went from bad explanation to no explanation. why is everyone is so quickly and really fixated in BaLa. If they would slow the pace a bit and more carefully, BaLa relationship with other character would make more sense. I havent read the nove, so i have no idea if BaLa's story is originally like that or not.
I would have rated it 1.5 point higher if not for that.

edit: ok, i finally read the novel.

bala's story and relationship was better explained in the novel while despite the shorter length i find the later part was better in the movie, it felt more meaningful.
i gotta say both the movie and novel have their own pros and cons. there are some parts that the novel elaborate better and other parts that the movie summarized better.