Wow, I'm suprised nobody has posted yet... o.o
Anyway, I really enjoyed it. It was simple, and yet breath-taking. The ending was predictable but the characters were just amazing... I love the female and male lead. Even the parents and sister had a personality of their own, unlike most Manga (unless they are dealing with fathers who abused their children, over-protective parents, ect.). In this one, you could completely understand the family's situation. I actually sympathised with the father since I'm sure that's what many people (including myself) would feel. I dunno, it's like I can relate to their feelings.
I also love how the music theme is linked to this story. It delivers a strong sense of emotions, without too many words or all those 'cliché crap'.
The only downside would be the rate of how quick the story goes. It would have been less empty if it had a few more chapters; at the most, 10.
Anyway, your thoughts on this?