This is the first time I've ever finished this manga. I tried before, but just couldn't get into it, but this time I had nothing better to do so I read everything in like 2 days.
Maybe I'm not mature enough (<-- I doubt that line of reasoning), but there's just something off about this manga. Like...everything about this manga just rubbed me the wrong way.
Yukino. I emphasize with her, I really do, but I feel like I would have emphasized with her waaaaay more if the author did a better job of highlighting her personality outside of her insecurities. My opinion on this could just be a mute point tho considering the fact that your personality does tend to get drowned out when you're insecure about it, but still.
Setsuko. She had more personality and appeared to be mature and "cool", but throughout the manga everything about her just struck me as odd and lightweight stupid. That's why I can't agree with the people who says she's so much more mature and able then Yukino...it just never came out to me like that. I saw her character more as just a person who got herself into some shit, felt kinda bad about it, and then couldn't control herself when she began to realize that her egoistic attempts at making it better weren't the end all be all.
Again, just my (very rough) opinion.
I'll explain better later...maybe I just have to think about it more. I did root for them as a couple, but of course I'm going to do that when the whole story revolves around them being together...otherwise no story.