This is pretty much standard fare as far as Japanese TV drama goes. Boy meets girl, they fall in love, then they have to overcome obstacles and misunderstandings along the way, blah, blah. And in the end, true love triumphs over all. Or does it....
The twist here is that the girl is wheelchair-bound and is suffering from some mysterious illness. Will she get better? Or will she kick the bucket? Well, that doesn't matter much since any reasonably intelligent person should have guessed the ending halfway through the series.
What makes this drama series work isn't the mystery of whether or not the girl recovers, but in the appeal of the lead and support characters. Takkako Tokiwa is radiant. If I am her doctor, I would diagnose her illness as Ally McGraw disease. Anyways, after awhile, you can't help but care about these characters. The series is enjoyable on that level.
Based on its merits, this series warrants a look for fans of Japanese dramas, although I think women will enjoy it more than men.