This drama is certainly one of the best drama I have ever seen! I'll explain it in four points. First, let's talk about the story. The plot of "Ichi Rittoru No Namida" is taken from a real story of a young girl called also Aya. Even if there was some modification to make it much more dramatic, lot of sentences in the drama are taken from the book. It gives even more impact to the story. I'm always touched by people who have illness so even more when it's this kind of uncurable illness... After watching the drama, I got interested in knowing more about the illness and did lot of research ! I promise you that you'll not be disappointed in watching this drama. Why ? Not only because the story is well written but also because the actors act really well. First, I'm a big fan of Nishikido Ryo (so of course he do act well) and Sawajiri Erika is someone I already saw playing an ill girl in Taiyou No Uta. First thought: she plays only ill people? Well, that didn't last long because she is really good in playing that role. It's rather frightening. The family of Aya is also played by really good actors and the little girl is SOOOO CUUUUUTE U.U As for the music, we can say the OST of this drama is... ONE OF THE BEST KNOWN OST EVER IN ASIA. Everyone who will watch this drama will fall in love with Konayuki and Sangatsu Kokonoka. Those two songs are really emblems of the drama. BUT the OST do not contain only those two songs and I'm pretty sure all the songs you will hear in the drama will make you feel moved and cry. Not kidding, just try and tell me. So much good points lead to a rewatch value really high. I gave 9 instead of 10 because you will anticipate the story afterward and try to skip some parts to not let you cry. Haha. But don't worry. This rewatch value still remains that high even if you watch it 1000 times. Don't ever hesitate watching this drama. Even if you will feel kind of... depressed afterwards. You will really think: "Wow, that was really a drama."