this is one of a few refreshing manga available out there.
the storyline is somewhat cliche, but my perfect rating goes for the ending.
so I will review about the characters more than the storyline.
Nina - she is not that much of a crybaby to me. She is just a fourteen year old girl and compare to other 'real' crybaby heroines, I think Nina only cries at the right time and I don't find her annoying. when she was broken heart, she didn't spend her time crying or stalking or chasing. instead she keeps standing on her feet and tries to deal with it.
Kyou - he is somewhat... confusing. he is not really a bad boy in my opinion, but his act is totally random. I don't know what kind of reasoning he uses to make a decision. I keep going 'why this, not that?' or 'why now, not then?' every time he decides on something. and Kyou, do tell me, if that what you think about your relationship with Nina, what not try to change it in a way that wouldn't make it worse?
Miyake - now this boy is totally sweet and cute. he is nice, but not a flawless angel. in fact, he does have a lot of flaw. he is typical shoujo character that I always root for, but usualy ended up broken heart. I don't get why he is so genuinely in love with Nina, but in the end his attitude towards her is the one that matters. and I like seeing him together with Nina.
Asou - she's not that hateful for me, though I'd like to know why she has that acute of inferiority complex over relationship.
what I like the most about this manga is everyone makes a mistake, realizes it, and tries to fix it. and in the end, they really got what they deserve.