1 Litre of tears is an obviously heart-breaking drama, that's even based on a true story. This makes the viewer feel the pain of the main charater -Aya- and her family, her friends and the boy that eventually falls in love with her. The drama shares a quite optimistic but yet realistic view of life, when it comes to hard situations. However, some scenes are a bit too dramatic in my opinion. Also, the opinios shared about life and death may not appeal to everyone. As far as acting is concerned, Sawajiri Erika and Nishikido Ryo were quite convincing. The same goes for the other actors. However for me Jinnai Takanori's acting was overdramatic. Narumi Riko was quite amateurish, too. The soundtrack was beautiful, although you can't help but notice that a couple of songs and music themes are repeated too many times during the drama. Generally, 1 litre of tears is a worth watching drama, especially if you love romance or tragedy. The character development is interesting and the story can touch anybody. Nevertheless, I can't overlook the fact that I felt that an important question was left unanswered in the end.