Story: the story is a good one.
The way the script is written is another story: bottom line, when the plot really started, the movie ended! I don't know why in every Japanese movie I've watched was a big drama, there was damaged people, and the moments of happiness seemed unreal! For me, the movie seemed like a line of events, somehow separated form each other, they were lost in details that could have been compressed easily in less then half of hour. There was no time to get into detail of the main story, the love between them.
The thing that I liked were the quotes. Were so many and they completed and explained the story line.
For example: "Wherever is one of us, the other is present" or " The moment one begins to love another is when life really starts. "
The very last quote said it all and explained the ending: "If somebody asks why I loved he way I did I'll answer hat both of us were authentic. That is my only answer" (Montaigne).
It could have been a great movie, but the one who wrote the script didn't do a good job.

Acting/Cast: Both main actors were really beautiful! It was a pleasure to watch them. Taking into account that they were 24 and 25 years' old, their acting was ok, not very impresive, as it should be at the beginning of the acting career. Only one or two scenes impressed me; I felt their chemistry, their emotions. It is true that a good actor can play everything. But also is true that always the script is the one which offers to the actors the opportunity to show their value. This wasn't the case here.

Music: To be honest, I don't know what to say about music. There was moments when I liked it, but there was nothing to impress me.

Rewatch: I will never rewatch it. The ending took me by surprise and made me cry even if I understand their idea. It could have been different ending, not necessarily a happy one, but just different.
I need to watch a comedy now......fast!